Home / 2,993.12-4,130.50-1,666.76

Finding the Fourth Proportional to 2,993.12, 4,130.50 and 1,666.76

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Solution

The fourth proportional to 2,993.12, 4,130.50 and 1,666.76 is: 2,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.12 : 4,130.50 = 1,666.76 : x
  2. Step 2: Convert to fraction form
    2,993.12/4,130.50 = 1,666.76/x
  3. Step 3: Cross multiply
    2,993.12x = 4,130.50 × 1,666.76
  4. Step 4: Simplify right side
    2,993.12x = 6,884,552.18
  5. Step 5: Solve for x
    x = 6,884,552.18/2,993.12
  6. Step 6: Final answer
    x = 2,300.13

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Half scale
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Double scale
Find fourth proportional to 2,994.12, 4,131.88 and 1,667.76
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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.