Home / 2,722.13-4,083.21-670.13

Finding the Fourth Proportional to 2,722.13, 4,083.21 and 670.13

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Solution

The fourth proportional to 2,722.13, 4,083.21 and 670.13 is: 1,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.13 : 4,083.21 = 670.13 : x
  2. Step 2: Convert to fraction form
    2,722.13/4,083.21 = 670.13/x
  3. Step 3: Cross multiply
    2,722.13x = 4,083.21 × 670.13
  4. Step 4: Simplify right side
    2,722.13x = 2,736,259.43
  5. Step 5: Solve for x
    x = 2,736,259.43/2,722.13
  6. Step 6: Final answer
    x = 1,005.19

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.