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Finding the Fourth Proportional to 2,169.03, 2,993.14 and 1,224.76

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Solution

The fourth proportional to 2,169.03, 2,993.14 and 1,224.76 is: 1,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.03 : 2,993.14 = 1,224.76 : x
  2. Step 2: Convert to fraction form
    2,169.03/2,993.14 = 1,224.76/x
  3. Step 3: Cross multiply
    2,169.03x = 2,993.14 × 1,224.76
  4. Step 4: Simplify right side
    2,169.03x = 3,665,878.15
  5. Step 5: Solve for x
    x = 3,665,878.15/2,169.03
  6. Step 6: Final answer
    x = 1,690.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,170.03, 2,994.52 and 1,225.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.