Home / 3,126.52-4,689.78-934.66

Finding the Fourth Proportional to 3,126.52, 4,689.78 and 934.66

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Solution

The fourth proportional to 3,126.52, 4,689.78 and 934.66 is: 1,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.52 : 4,689.78 = 934.66 : x
  2. Step 2: Convert to fraction form
    3,126.52/4,689.78 = 934.66/x
  3. Step 3: Cross multiply
    3,126.52x = 4,689.78 × 934.66
  4. Step 4: Simplify right side
    3,126.52x = 4,383,349.77
  5. Step 5: Solve for x
    x = 4,383,349.77/3,126.52
  6. Step 6: Final answer
    x = 1,401.99

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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.