Home / 3,557.55-5,340.08-1,998.88

Finding the Fourth Proportional to 3,557.55, 5,340.08 and 1,998.88

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Solution

The fourth proportional to 3,557.55, 5,340.08 and 1,998.88 is: 3,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.55 : 5,340.08 = 1,998.88 : x
  2. Step 2: Convert to fraction form
    3,557.55/5,340.08 = 1,998.88/x
  3. Step 3: Cross multiply
    3,557.55x = 5,340.08 × 1,998.88
  4. Step 4: Simplify right side
    3,557.55x = 10,674,169.12
  5. Step 5: Solve for x
    x = 10,674,169.12/3,557.55
  6. Step 6: Final answer
    x = 3,000.43

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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.