Home / 5,157.91-7,731.28-2,527.20

Finding the Fourth Proportional to 5,157.91, 7,731.28 and 2,527.20

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Solution

The fourth proportional to 5,157.91, 7,731.28 and 2,527.20 is: 3,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.91 : 7,731.28 = 2,527.20 : x
  2. Step 2: Convert to fraction form
    5,157.91/7,731.28 = 2,527.20/x
  3. Step 3: Cross multiply
    5,157.91x = 7,731.28 × 2,527.20
  4. Step 4: Simplify right side
    5,157.91x = 19,538,455.51
  5. Step 5: Solve for x
    x = 19,538,455.51/5,157.91
  6. Step 6: Final answer
    x = 3,788.06

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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.