Home / 5,147.20-7,712.56-5,010.51

Finding the Fourth Proportional to 5,147.20, 7,712.56 and 5,010.51

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Solution

The fourth proportional to 5,147.20, 7,712.56 and 5,010.51 is: 7,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.20 : 7,712.56 = 5,010.51 : x
  2. Step 2: Convert to fraction form
    5,147.20/7,712.56 = 5,010.51/x
  3. Step 3: Cross multiply
    5,147.20x = 7,712.56 × 5,010.51
  4. Step 4: Simplify right side
    5,147.20x = 38,643,859.01
  5. Step 5: Solve for x
    x = 38,643,859.01/5,147.20
  6. Step 6: Final answer
    x = 7,507.74

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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.