Home / 1,649.28-2,474.88-1,217.44

Finding the Fourth Proportional to 1,649.28, 2,474.88 and 1,217.44

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Solution

The fourth proportional to 1,649.28, 2,474.88 and 1,217.44 is: 1,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.28 : 2,474.88 = 1,217.44 : x
  2. Step 2: Convert to fraction form
    1,649.28/2,474.88 = 1,217.44/x
  3. Step 3: Cross multiply
    1,649.28x = 2,474.88 × 1,217.44
  4. Step 4: Simplify right side
    1,649.28x = 3,013,017.91
  5. Step 5: Solve for x
    x = 3,013,017.91/1,649.28
  6. Step 6: Final answer
    x = 1,826.87

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1.5x scale

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.