Home / 3,126.62-4,689.56-935.18

Finding the Fourth Proportional to 3,126.62, 4,689.56 and 935.18

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Solution

The fourth proportional to 3,126.62, 4,689.56 and 935.18 is: 1,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.62 : 4,689.56 = 935.18 : x
  2. Step 2: Convert to fraction form
    3,126.62/4,689.56 = 935.18/x
  3. Step 3: Cross multiply
    3,126.62x = 4,689.56 × 935.18
  4. Step 4: Simplify right side
    3,126.62x = 4,385,554.60
  5. Step 5: Solve for x
    x = 4,385,554.60/3,126.62
  6. Step 6: Final answer
    x = 1,402.65

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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.