Home / 3,380.12-5,070.05-1,531.23

Finding the Fourth Proportional to 3,380.12, 5,070.05 and 1,531.23

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Solution

The fourth proportional to 3,380.12, 5,070.05 and 1,531.23 is: 2,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.12 : 5,070.05 = 1,531.23 : x
  2. Step 2: Convert to fraction form
    3,380.12/5,070.05 = 1,531.23/x
  3. Step 3: Cross multiply
    3,380.12x = 5,070.05 × 1,531.23
  4. Step 4: Simplify right side
    3,380.12x = 7,763,416.49
  5. Step 5: Solve for x
    x = 7,763,416.49/3,380.12
  6. Step 6: Final answer
    x = 2,296.79

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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.