Home / 5,474.72-7,555.20-3,117.28

Finding the Fourth Proportional to 5,474.72, 7,555.20 and 3,117.28

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Solution

The fourth proportional to 5,474.72, 7,555.20 and 3,117.28 is: 4,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.72 : 7,555.20 = 3,117.28 : x
  2. Step 2: Convert to fraction form
    5,474.72/7,555.20 = 3,117.28/x
  3. Step 3: Cross multiply
    5,474.72x = 7,555.20 × 3,117.28
  4. Step 4: Simplify right side
    5,474.72x = 23,551,673.86
  5. Step 5: Solve for x
    x = 23,551,673.86/5,474.72
  6. Step 6: Final answer
    x = 4,301.90

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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.