Home / 5,425.80-8,139.60-2,307.30

Finding the Fourth Proportional to 5,425.80, 8,139.60 and 2,307.30

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Solution

The fourth proportional to 5,425.80, 8,139.60 and 2,307.30 is: 3,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.80 : 8,139.60 = 2,307.30 : x
  2. Step 2: Convert to fraction form
    5,425.80/8,139.60 = 2,307.30/x
  3. Step 3: Cross multiply
    5,425.80x = 8,139.60 × 2,307.30
  4. Step 4: Simplify right side
    5,425.80x = 18,780,499.08
  5. Step 5: Solve for x
    x = 18,780,499.08/5,425.80
  6. Step 6: Final answer
    x = 3,461.33

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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.