Home / 3,141.50-4,354.60-3,089.21

Finding the Fourth Proportional to 3,141.50, 4,354.60 and 3,089.21

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Solution

The fourth proportional to 3,141.50, 4,354.60 and 3,089.21 is: 4,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.50 : 4,354.60 = 3,089.21 : x
  2. Step 2: Convert to fraction form
    3,141.50/4,354.60 = 3,089.21/x
  3. Step 3: Cross multiply
    3,141.50x = 4,354.60 × 3,089.21
  4. Step 4: Simplify right side
    3,141.50x = 13,452,258.42
  5. Step 5: Solve for x
    x = 13,452,258.42/3,141.50
  6. Step 6: Final answer
    x = 4,282.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.