Home / 4,359.20-6,536.56-1,280.80

Finding the Fourth Proportional to 4,359.20, 6,536.56 and 1,280.80

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Solution

The fourth proportional to 4,359.20, 6,536.56 and 1,280.80 is: 1,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,359.20 : 6,536.56 = 1,280.80 : x
  2. Step 2: Convert to fraction form
    4,359.20/6,536.56 = 1,280.80/x
  3. Step 3: Cross multiply
    4,359.20x = 6,536.56 × 1,280.80
  4. Step 4: Simplify right side
    4,359.20x = 8,372,026.05
  5. Step 5: Solve for x
    x = 8,372,026.05/4,359.20
  6. Step 6: Final answer
    x = 1,920.54

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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.