Home / 4,319.16-6,478.68-2,857.95

Finding the Fourth Proportional to 4,319.16, 6,478.68 and 2,857.95

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Solution

The fourth proportional to 4,319.16, 6,478.68 and 2,857.95 is: 4,286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.16 : 6,478.68 = 2,857.95 : x
  2. Step 2: Convert to fraction form
    4,319.16/6,478.68 = 2,857.95/x
  3. Step 3: Cross multiply
    4,319.16x = 6,478.68 × 2,857.95
  4. Step 4: Simplify right side
    4,319.16x = 18,515,754.22
  5. Step 5: Solve for x
    x = 18,515,754.22/4,319.16
  6. Step 6: Final answer
    x = 4,286.89

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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.