Home / 3,125.25-4,687.72-1,045.47

Finding the Fourth Proportional to 3,125.25, 4,687.72 and 1,045.47

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Solution

The fourth proportional to 3,125.25, 4,687.72 and 1,045.47 is: 1,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.25 : 4,687.72 = 1,045.47 : x
  2. Step 2: Convert to fraction form
    3,125.25/4,687.72 = 1,045.47/x
  3. Step 3: Cross multiply
    3,125.25x = 4,687.72 × 1,045.47
  4. Step 4: Simplify right side
    3,125.25x = 4,900,870.63
  5. Step 5: Solve for x
    x = 4,900,870.63/3,125.25
  6. Step 6: Final answer
    x = 1,568.15

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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.