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Finding the Fourth Proportional to 3,125.57, 4,688.45 and 934.41

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Solution

The fourth proportional to 3,125.57, 4,688.45 and 934.41 is: 1,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.57 : 4,688.45 = 934.41 : x
  2. Step 2: Convert to fraction form
    3,125.57/4,688.45 = 934.41/x
  3. Step 3: Cross multiply
    3,125.57x = 4,688.45 × 934.41
  4. Step 4: Simplify right side
    3,125.57x = 4,380,950.98
  5. Step 5: Solve for x
    x = 4,380,950.98/3,125.57
  6. Step 6: Final answer
    x = 1,401.65

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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.