Home / 3,125.30-4,687.35-934.10

Finding the Fourth Proportional to 3,125.30, 4,687.35 and 934.10

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Solution

The fourth proportional to 3,125.30, 4,687.35 and 934.10 is: 1,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.30 : 4,687.35 = 934.10 : x
  2. Step 2: Convert to fraction form
    3,125.30/4,687.35 = 934.10/x
  3. Step 3: Cross multiply
    3,125.30x = 4,687.35 × 934.10
  4. Step 4: Simplify right side
    3,125.30x = 4,378,453.64
  5. Step 5: Solve for x
    x = 4,378,453.64/3,125.30
  6. Step 6: Final answer
    x = 1,400.97

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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.