Home / 1,462.20-2,017.51-938.13

Finding the Fourth Proportional to 1,462.20, 2,017.51 and 938.13

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Solution

The fourth proportional to 1,462.20, 2,017.51 and 938.13 is: 1,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.20 : 2,017.51 = 938.13 : x
  2. Step 2: Convert to fraction form
    1,462.20/2,017.51 = 938.13/x
  3. Step 3: Cross multiply
    1,462.20x = 2,017.51 × 938.13
  4. Step 4: Simplify right side
    1,462.20x = 1,892,686.66
  5. Step 5: Solve for x
    x = 1,892,686.66/1,462.20
  6. Step 6: Final answer
    x = 1,294.41

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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.