Home / 3,438.59-5,158.04-1,098.70

Finding the Fourth Proportional to 3,438.59, 5,158.04 and 1,098.70

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Solution

The fourth proportional to 3,438.59, 5,158.04 and 1,098.70 is: 1,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.59 : 5,158.04 = 1,098.70 : x
  2. Step 2: Convert to fraction form
    3,438.59/5,158.04 = 1,098.70/x
  3. Step 3: Cross multiply
    3,438.59x = 5,158.04 × 1,098.70
  4. Step 4: Simplify right side
    3,438.59x = 5,667,138.55
  5. Step 5: Solve for x
    x = 5,667,138.55/3,438.59
  6. Step 6: Final answer
    x = 1,648.10

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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.