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Finding the Fourth Proportional to 1,600.64, 2,208.80 and 937.56

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Solution

The fourth proportional to 1,600.64, 2,208.80 and 937.56 is: 1,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.64 : 2,208.80 = 937.56 : x
  2. Step 2: Convert to fraction form
    1,600.64/2,208.80 = 937.56/x
  3. Step 3: Cross multiply
    1,600.64x = 2,208.80 × 937.56
  4. Step 4: Simplify right side
    1,600.64x = 2,070,882.53
  5. Step 5: Solve for x
    x = 2,070,882.53/1,600.64
  6. Step 6: Final answer
    x = 1,293.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.