Home / 1,447.06-2,171.19-625.18

Finding the Fourth Proportional to 1,447.06, 2,171.19 and 625.18

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Solution

The fourth proportional to 1,447.06, 2,171.19 and 625.18 is: 938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.06 : 2,171.19 = 625.18 : x
  2. Step 2: Convert to fraction form
    1,447.06/2,171.19 = 625.18/x
  3. Step 3: Cross multiply
    1,447.06x = 2,171.19 × 625.18
  4. Step 4: Simplify right side
    1,447.06x = 1,357,384.56
  5. Step 5: Solve for x
    x = 1,357,384.56/1,447.06
  6. Step 6: Final answer
    x = 938.03

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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.