Home / 3,487.28-5,232.64-1,638.56

Finding the Fourth Proportional to 3,487.28, 5,232.64 and 1,638.56

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Solution

The fourth proportional to 3,487.28, 5,232.64 and 1,638.56 is: 2,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.28 : 5,232.64 = 1,638.56 : x
  2. Step 2: Convert to fraction form
    3,487.28/5,232.64 = 1,638.56/x
  3. Step 3: Cross multiply
    3,487.28x = 5,232.64 × 1,638.56
  4. Step 4: Simplify right side
    3,487.28x = 8,573,994.60
  5. Step 5: Solve for x
    x = 8,573,994.60/3,487.28
  6. Step 6: Final answer
    x = 2,458.65

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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.