Home / 4,392.20-6,587.76-1,272.56

Finding the Fourth Proportional to 4,392.20, 6,587.76 and 1,272.56

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Solution

The fourth proportional to 4,392.20, 6,587.76 and 1,272.56 is: 1,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.20 : 6,587.76 = 1,272.56 : x
  2. Step 2: Convert to fraction form
    4,392.20/6,587.76 = 1,272.56/x
  3. Step 3: Cross multiply
    4,392.20x = 6,587.76 × 1,272.56
  4. Step 4: Simplify right side
    4,392.20x = 8,383,319.87
  5. Step 5: Solve for x
    x = 8,383,319.87/4,392.20
  6. Step 6: Final answer
    x = 1,908.68

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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.