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Finding the Fourth Proportional to 1,484.84, 2,227.78 and 560.66

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Solution

The fourth proportional to 1,484.84, 2,227.78 and 560.66 is: 841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.84 : 2,227.78 = 560.66 : x
  2. Step 2: Convert to fraction form
    1,484.84/2,227.78 = 560.66/x
  3. Step 3: Cross multiply
    1,484.84x = 2,227.78 × 560.66
  4. Step 4: Simplify right side
    1,484.84x = 1,249,024.33
  5. Step 5: Solve for x
    x = 1,249,024.33/1,484.84
  6. Step 6: Final answer
    x = 841.18

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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.