Home / 2,614.13-3,921.16-666.31

Finding the Fourth Proportional to 2,614.13, 3,921.16 and 666.31

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Solution

The fourth proportional to 2,614.13, 3,921.16 and 666.31 is: 999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.13 : 3,921.16 = 666.31 : x
  2. Step 2: Convert to fraction form
    2,614.13/3,921.16 = 666.31/x
  3. Step 3: Cross multiply
    2,614.13x = 3,921.16 × 666.31
  4. Step 4: Simplify right side
    2,614.13x = 2,612,685.18
  5. Step 5: Solve for x
    x = 2,612,685.18/2,614.13
  6. Step 6: Final answer
    x = 999.45

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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.