Home / 5,079.20-7,618.80-4,277.30

Finding the Fourth Proportional to 5,079.20, 7,618.80 and 4,277.30

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Solution

The fourth proportional to 5,079.20, 7,618.80 and 4,277.30 is: 6,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.20 : 7,618.80 = 4,277.30 : x
  2. Step 2: Convert to fraction form
    5,079.20/7,618.80 = 4,277.30/x
  3. Step 3: Cross multiply
    5,079.20x = 7,618.80 × 4,277.30
  4. Step 4: Simplify right side
    5,079.20x = 32,587,893.24
  5. Step 5: Solve for x
    x = 32,587,893.24/5,079.20
  6. Step 6: Final answer
    x = 6,415.95

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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.