Home / 5,156.24-7,115.25-2,918.06

Finding the Fourth Proportional to 5,156.24, 7,115.25 and 2,918.06

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Solution

The fourth proportional to 5,156.24, 7,115.25 and 2,918.06 is: 4,026.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.24 : 7,115.25 = 2,918.06 : x
  2. Step 2: Convert to fraction form
    5,156.24/7,115.25 = 2,918.06/x
  3. Step 3: Cross multiply
    5,156.24x = 7,115.25 × 2,918.06
  4. Step 4: Simplify right side
    5,156.24x = 20,762,726.42
  5. Step 5: Solve for x
    x = 20,762,726.42/5,156.24
  6. Step 6: Final answer
    x = 4,026.72

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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.