Home / 5,165.40-7,131.30-3,400.04

Finding the Fourth Proportional to 5,165.40, 7,131.30 and 3,400.04

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Solution

The fourth proportional to 5,165.40, 7,131.30 and 3,400.04 is: 4,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.40 : 7,131.30 = 3,400.04 : x
  2. Step 2: Convert to fraction form
    5,165.40/7,131.30 = 3,400.04/x
  3. Step 3: Cross multiply
    5,165.40x = 7,131.30 × 3,400.04
  4. Step 4: Simplify right side
    5,165.40x = 24,246,705.25
  5. Step 5: Solve for x
    x = 24,246,705.25/5,165.40
  6. Step 6: Final answer
    x = 4,694.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.