Home / 5,345.20-8,012.40-2,425.60

Finding the Fourth Proportional to 5,345.20, 8,012.40 and 2,425.60

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Solution

The fourth proportional to 5,345.20, 8,012.40 and 2,425.60 is: 3,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.20 : 8,012.40 = 2,425.60 : x
  2. Step 2: Convert to fraction form
    5,345.20/8,012.40 = 2,425.60/x
  3. Step 3: Cross multiply
    5,345.20x = 8,012.40 × 2,425.60
  4. Step 4: Simplify right side
    5,345.20x = 19,434,877.44
  5. Step 5: Solve for x
    x = 19,434,877.44/5,345.20
  6. Step 6: Final answer
    x = 3,635.95

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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.