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Finding the Fourth Proportional to 1,649.52, 2,474.69 and 662.40

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Solution

The fourth proportional to 1,649.52, 2,474.69 and 662.40 is: 993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.52 : 2,474.69 = 662.40 : x
  2. Step 2: Convert to fraction form
    1,649.52/2,474.69 = 662.40/x
  3. Step 3: Cross multiply
    1,649.52x = 2,474.69 × 662.40
  4. Step 4: Simplify right side
    1,649.52x = 1,639,231.34
  5. Step 5: Solve for x
    x = 1,639,231.34/1,649.52
  6. Step 6: Final answer
    x = 993.76

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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.