Home / 1,581.22-2,177.13-1,344.70

Finding the Fourth Proportional to 1,581.22, 2,177.13 and 1,344.70

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Solution

The fourth proportional to 1,581.22, 2,177.13 and 1,344.70 is: 1,851.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.22 : 2,177.13 = 1,344.70 : x
  2. Step 2: Convert to fraction form
    1,581.22/2,177.13 = 1,344.70/x
  3. Step 3: Cross multiply
    1,581.22x = 2,177.13 × 1,344.70
  4. Step 4: Simplify right side
    1,581.22x = 2,927,586.71
  5. Step 5: Solve for x
    x = 2,927,586.71/1,581.22
  6. Step 6: Final answer
    x = 1,851.47

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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.