Home / 3,438.28-5,158.02-1,098.19

Finding the Fourth Proportional to 3,438.28, 5,158.02 and 1,098.19

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Solution

The fourth proportional to 3,438.28, 5,158.02 and 1,098.19 is: 1,647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.28 : 5,158.02 = 1,098.19 : x
  2. Step 2: Convert to fraction form
    3,438.28/5,158.02 = 1,098.19/x
  3. Step 3: Cross multiply
    3,438.28x = 5,158.02 × 1,098.19
  4. Step 4: Simplify right side
    3,438.28x = 5,664,485.98
  5. Step 5: Solve for x
    x = 5,664,485.98/3,438.28
  6. Step 6: Final answer
    x = 1,647.48

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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.