Home / 5,257.32-7,876.70-4,685.28

Finding the Fourth Proportional to 5,257.32, 7,876.70 and 4,685.28

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Solution

The fourth proportional to 5,257.32, 7,876.70 and 4,685.28 is: 7,019.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.32 : 7,876.70 = 4,685.28 : x
  2. Step 2: Convert to fraction form
    5,257.32/7,876.70 = 4,685.28/x
  3. Step 3: Cross multiply
    5,257.32x = 7,876.70 × 4,685.28
  4. Step 4: Simplify right side
    5,257.32x = 36,904,544.98
  5. Step 5: Solve for x
    x = 36,904,544.98/5,257.32
  6. Step 6: Final answer
    x = 7,019.65

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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.