Home / 3,125.72-4,687.64-1,045.19

Finding the Fourth Proportional to 3,125.72, 4,687.64 and 1,045.19

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Solution

The fourth proportional to 3,125.72, 4,687.64 and 1,045.19 is: 1,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.72 : 4,687.64 = 1,045.19 : x
  2. Step 2: Convert to fraction form
    3,125.72/4,687.64 = 1,045.19/x
  3. Step 3: Cross multiply
    3,125.72x = 4,687.64 × 1,045.19
  4. Step 4: Simplify right side
    3,125.72x = 4,899,469.23
  5. Step 5: Solve for x
    x = 4,899,469.23/3,125.72
  6. Step 6: Final answer
    x = 1,567.47

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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.