Home / 1,447.11-2,170.47-624.70

Finding the Fourth Proportional to 1,447.11, 2,170.47 and 624.70

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Solution

The fourth proportional to 1,447.11, 2,170.47 and 624.70 is: 936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.11 : 2,170.47 = 624.70 : x
  2. Step 2: Convert to fraction form
    1,447.11/2,170.47 = 624.70/x
  3. Step 3: Cross multiply
    1,447.11x = 2,170.47 × 624.70
  4. Step 4: Simplify right side
    1,447.11x = 1,355,887.18
  5. Step 5: Solve for x
    x = 1,355,887.18/1,447.11
  6. Step 6: Final answer
    x = 936.96

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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.