Home / 5,147.16-7,103.45-2,909.24

Finding the Fourth Proportional to 5,147.16, 7,103.45 and 2,909.24

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Solution

The fourth proportional to 5,147.16, 7,103.45 and 2,909.24 is: 4,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.16 : 7,103.45 = 2,909.24 : x
  2. Step 2: Convert to fraction form
    5,147.16/7,103.45 = 2,909.24/x
  3. Step 3: Cross multiply
    5,147.16x = 7,103.45 × 2,909.24
  4. Step 4: Simplify right side
    5,147.16x = 20,665,644.09
  5. Step 5: Solve for x
    x = 20,665,644.09/5,147.16
  6. Step 6: Final answer
    x = 4,014.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.