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Finding the Fourth Proportional to 2,652.48, 3,978.76 and 1,008.24

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Solution

The fourth proportional to 2,652.48, 3,978.76 and 1,008.24 is: 1,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.48 : 3,978.76 = 1,008.24 : x
  2. Step 2: Convert to fraction form
    2,652.48/3,978.76 = 1,008.24/x
  3. Step 3: Cross multiply
    2,652.48x = 3,978.76 × 1,008.24
  4. Step 4: Simplify right side
    2,652.48x = 4,011,544.98
  5. Step 5: Solve for x
    x = 4,011,544.98/2,652.48
  6. Step 6: Final answer
    x = 1,512.38

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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.