Home / 6,436.52-8,879.56-4,077.20

Finding the Fourth Proportional to 6,436.52, 8,879.56 and 4,077.20

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Solution

The fourth proportional to 6,436.52, 8,879.56 and 4,077.20 is: 5,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.52 : 8,879.56 = 4,077.20 : x
  2. Step 2: Convert to fraction form
    6,436.52/8,879.56 = 4,077.20/x
  3. Step 3: Cross multiply
    6,436.52x = 8,879.56 × 4,077.20
  4. Step 4: Simplify right side
    6,436.52x = 36,203,742.03
  5. Step 5: Solve for x
    x = 36,203,742.03/6,436.52
  6. Step 6: Final answer
    x = 5,624.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.