Home / 1,472.24-2,206.19-1,427.90

Finding the Fourth Proportional to 1,472.24, 2,206.19 and 1,427.90

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Solution

The fourth proportional to 1,472.24, 2,206.19 and 1,427.90 is: 2,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.24 : 2,206.19 = 1,427.90 : x
  2. Step 2: Convert to fraction form
    1,472.24/2,206.19 = 1,427.90/x
  3. Step 3: Cross multiply
    1,472.24x = 2,206.19 × 1,427.90
  4. Step 4: Simplify right side
    1,472.24x = 3,150,200.53
  5. Step 5: Solve for x
    x = 3,150,200.53/1,472.24
  6. Step 6: Final answer
    x = 2,139.74

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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.