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Finding the Fourth Proportional to 6,521, 8,998.98 and 3,726.56

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Solution

The fourth proportional to 6,521, 8,998.98 and 3,726.56 is: 5,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521 : 8,998.98 = 3,726.56 : x
  2. Step 2: Convert to fraction form
    6,521/8,998.98 = 3,726.56/x
  3. Step 3: Cross multiply
    6,521x = 8,998.98 × 3,726.56
  4. Step 4: Simplify right side
    6,521x = 33,535,238.91
  5. Step 5: Solve for x
    x = 33,535,238.91/6,521
  6. Step 6: Final answer
    x = 5,142.65

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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.