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Finding the Fourth Proportional to 7,521, 11,281.54 and 2,049

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Solution

The fourth proportional to 7,521, 11,281.54 and 2,049 is: 3,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521 : 11,281.54 = 2,049 : x
  2. Step 2: Convert to fraction form
    7,521/11,281.54 = 2,049/x
  3. Step 3: Cross multiply
    7,521x = 11,281.54 × 2,049
  4. Step 4: Simplify right side
    7,521x = 23,115,875.46
  5. Step 5: Solve for x
    x = 23,115,875.46/7,521
  6. Step 6: Final answer
    x = 3,073.51

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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.