Home / 3,477.42-5,217.57-1,398.89

Finding the Fourth Proportional to 3,477.42, 5,217.57 and 1,398.89

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Solution

The fourth proportional to 3,477.42, 5,217.57 and 1,398.89 is: 2,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.42 : 5,217.57 = 1,398.89 : x
  2. Step 2: Convert to fraction form
    3,477.42/5,217.57 = 1,398.89/x
  3. Step 3: Cross multiply
    3,477.42x = 5,217.57 × 1,398.89
  4. Step 4: Simplify right side
    3,477.42x = 7,298,799.50
  5. Step 5: Solve for x
    x = 7,298,799.50/3,477.42
  6. Step 6: Final answer
    x = 2,098.92

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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.