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Finding the Fourth Proportional to 5,245.29, 7,869.29 and 1,547.37

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Solution

The fourth proportional to 5,245.29, 7,869.29 and 1,547.37 is: 2,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.29 : 7,869.29 = 1,547.37 : x
  2. Step 2: Convert to fraction form
    5,245.29/7,869.29 = 1,547.37/x
  3. Step 3: Cross multiply
    5,245.29x = 7,869.29 × 1,547.37
  4. Step 4: Simplify right side
    5,245.29x = 12,176,695.53
  5. Step 5: Solve for x
    x = 12,176,695.53/5,245.29
  6. Step 6: Final answer
    x = 2,321.45

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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.