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Finding the Fourth Proportional to 7,703.52, 11,547.96 and 2,505.78

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Solution

The fourth proportional to 7,703.52, 11,547.96 and 2,505.78 is: 3,756.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.52 : 11,547.96 = 2,505.78 : x
  2. Step 2: Convert to fraction form
    7,703.52/11,547.96 = 2,505.78/x
  3. Step 3: Cross multiply
    7,703.52x = 11,547.96 × 2,505.78
  4. Step 4: Simplify right side
    7,703.52x = 28,936,647.21
  5. Step 5: Solve for x
    x = 28,936,647.21/7,703.52
  6. Step 6: Final answer
    x = 3,756.29

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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.