Home / 1,445.74-2,171.06-1,371.76

Finding the Fourth Proportional to 1,445.74, 2,171.06 and 1,371.76

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Solution

The fourth proportional to 1,445.74, 2,171.06 and 1,371.76 is: 2,059.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.74 : 2,171.06 = 1,371.76 : x
  2. Step 2: Convert to fraction form
    1,445.74/2,171.06 = 1,371.76/x
  3. Step 3: Cross multiply
    1,445.74x = 2,171.06 × 1,371.76
  4. Step 4: Simplify right side
    1,445.74x = 2,978,166.12
  5. Step 5: Solve for x
    x = 2,978,166.12/1,445.74
  6. Step 6: Final answer
    x = 2,059.96

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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.