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Finding the Fourth Proportional to 2,011.47, 3,017.22 and 624.78

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Solution

The fourth proportional to 2,011.47, 3,017.22 and 624.78 is: 937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.47 : 3,017.22 = 624.78 : x
  2. Step 2: Convert to fraction form
    2,011.47/3,017.22 = 624.78/x
  3. Step 3: Cross multiply
    2,011.47x = 3,017.22 × 624.78
  4. Step 4: Simplify right side
    2,011.47x = 1,885,098.71
  5. Step 5: Solve for x
    x = 1,885,098.71/2,011.47
  6. Step 6: Final answer
    x = 937.17

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1.5x scale

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.