Home / 1,337.15-2,001.52-918.22

Finding the Fourth Proportional to 1,337.15, 2,001.52 and 918.22

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Solution

The fourth proportional to 1,337.15, 2,001.52 and 918.22 is: 1,374.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.15 : 2,001.52 = 918.22 : x
  2. Step 2: Convert to fraction form
    1,337.15/2,001.52 = 918.22/x
  3. Step 3: Cross multiply
    1,337.15x = 2,001.52 × 918.22
  4. Step 4: Simplify right side
    1,337.15x = 1,837,839.52
  5. Step 5: Solve for x
    x = 1,837,839.52/1,337.15
  6. Step 6: Final answer
    x = 1,374.45

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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.