Home / 3,531.12-5,296.80-1,340.88

Finding the Fourth Proportional to 3,531.12, 5,296.80 and 1,340.88

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Solution

The fourth proportional to 3,531.12, 5,296.80 and 1,340.88 is: 2,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.12 : 5,296.80 = 1,340.88 : x
  2. Step 2: Convert to fraction form
    3,531.12/5,296.80 = 1,340.88/x
  3. Step 3: Cross multiply
    3,531.12x = 5,296.80 × 1,340.88
  4. Step 4: Simplify right side
    3,531.12x = 7,102,373.18
  5. Step 5: Solve for x
    x = 7,102,373.18/3,531.12
  6. Step 6: Final answer
    x = 2,011.37

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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.