Home / 1,625.22-2,243.56-1,065.72

Finding the Fourth Proportional to 1,625.22, 2,243.56 and 1,065.72

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Solution

The fourth proportional to 1,625.22, 2,243.56 and 1,065.72 is: 1,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.22 : 2,243.56 = 1,065.72 : x
  2. Step 2: Convert to fraction form
    1,625.22/2,243.56 = 1,065.72/x
  3. Step 3: Cross multiply
    1,625.22x = 2,243.56 × 1,065.72
  4. Step 4: Simplify right side
    1,625.22x = 2,391,006.76
  5. Step 5: Solve for x
    x = 2,391,006.76/1,625.22
  6. Step 6: Final answer
    x = 1,471.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.