Home / 3,125.88-4,688.87-934.70

Finding the Fourth Proportional to 3,125.88, 4,688.87 and 934.70

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Solution

The fourth proportional to 3,125.88, 4,688.87 and 934.70 is: 1,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.88 : 4,688.87 = 934.70 : x
  2. Step 2: Convert to fraction form
    3,125.88/4,688.87 = 934.70/x
  3. Step 3: Cross multiply
    3,125.88x = 4,688.87 × 934.70
  4. Step 4: Simplify right side
    3,125.88x = 4,382,658.67
  5. Step 5: Solve for x
    x = 4,382,658.67/3,125.88
  6. Step 6: Final answer
    x = 1,402.06

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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.