Home / 5,251.74-7,247.28-3,155.82

Finding the Fourth Proportional to 5,251.74, 7,247.28 and 3,155.82

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Solution

The fourth proportional to 5,251.74, 7,247.28 and 3,155.82 is: 4,354.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.74 : 7,247.28 = 3,155.82 : x
  2. Step 2: Convert to fraction form
    5,251.74/7,247.28 = 3,155.82/x
  3. Step 3: Cross multiply
    5,251.74x = 7,247.28 × 3,155.82
  4. Step 4: Simplify right side
    5,251.74x = 22,871,111.17
  5. Step 5: Solve for x
    x = 22,871,111.17/5,251.74
  6. Step 6: Final answer
    x = 4,354.96

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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.