Home / 2,666.13-3,999.17-1,434.12

Finding the Fourth Proportional to 2,666.13, 3,999.17 and 1,434.12

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Solution

The fourth proportional to 2,666.13, 3,999.17 and 1,434.12 is: 2,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.13 : 3,999.17 = 1,434.12 : x
  2. Step 2: Convert to fraction form
    2,666.13/3,999.17 = 1,434.12/x
  3. Step 3: Cross multiply
    2,666.13x = 3,999.17 × 1,434.12
  4. Step 4: Simplify right side
    2,666.13x = 5,735,282.51
  5. Step 5: Solve for x
    x = 5,735,282.51/2,666.13
  6. Step 6: Final answer
    x = 2,151.16

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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.