Home / 3,126.52-4,690.12-935.90

Finding the Fourth Proportional to 3,126.52, 4,690.12 and 935.90

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Solution

The fourth proportional to 3,126.52, 4,690.12 and 935.90 is: 1,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.52 : 4,690.12 = 935.90 : x
  2. Step 2: Convert to fraction form
    3,126.52/4,690.12 = 935.90/x
  3. Step 3: Cross multiply
    3,126.52x = 4,690.12 × 935.90
  4. Step 4: Simplify right side
    3,126.52x = 4,389,483.31
  5. Step 5: Solve for x
    x = 4,389,483.31/3,126.52
  6. Step 6: Final answer
    x = 1,403.95

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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.