Home / 5,531.20-8,296.80-5,458.30

Finding the Fourth Proportional to 5,531.20, 8,296.80 and 5,458.30

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Solution

The fourth proportional to 5,531.20, 8,296.80 and 5,458.30 is: 8,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.20 : 8,296.80 = 5,458.30 : x
  2. Step 2: Convert to fraction form
    5,531.20/8,296.80 = 5,458.30/x
  3. Step 3: Cross multiply
    5,531.20x = 8,296.80 × 5,458.30
  4. Step 4: Simplify right side
    5,531.20x = 45,286,423.44
  5. Step 5: Solve for x
    x = 45,286,423.44/5,531.20
  6. Step 6: Final answer
    x = 8,187.45

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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.