Home / 4,339.56-6,520.04-2,780.24

Finding the Fourth Proportional to 4,339.56, 6,520.04 and 2,780.24

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Solution

The fourth proportional to 4,339.56, 6,520.04 and 2,780.24 is: 4,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,339.56 : 6,520.04 = 2,780.24 : x
  2. Step 2: Convert to fraction form
    4,339.56/6,520.04 = 2,780.24/x
  3. Step 3: Cross multiply
    4,339.56x = 6,520.04 × 2,780.24
  4. Step 4: Simplify right side
    4,339.56x = 18,127,229.51
  5. Step 5: Solve for x
    x = 18,127,229.51/4,339.56
  6. Step 6: Final answer
    x = 4,177.20

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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.