Home / 3,445.23-5,167.26-979.50

Finding the Fourth Proportional to 3,445.23, 5,167.26 and 979.50

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Solution

The fourth proportional to 3,445.23, 5,167.26 and 979.50 is: 1,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.23 : 5,167.26 = 979.50 : x
  2. Step 2: Convert to fraction form
    3,445.23/5,167.26 = 979.50/x
  3. Step 3: Cross multiply
    3,445.23x = 5,167.26 × 979.50
  4. Step 4: Simplify right side
    3,445.23x = 5,061,331.17
  5. Step 5: Solve for x
    x = 5,061,331.17/3,445.23
  6. Step 6: Final answer
    x = 1,469.08

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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.