Home / 3,478.92-4,803.30-2,818.68

Finding the Fourth Proportional to 3,478.92, 4,803.30 and 2,818.68

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Solution

The fourth proportional to 3,478.92, 4,803.30 and 2,818.68 is: 3,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.92 : 4,803.30 = 2,818.68 : x
  2. Step 2: Convert to fraction form
    3,478.92/4,803.30 = 2,818.68/x
  3. Step 3: Cross multiply
    3,478.92x = 4,803.30 × 2,818.68
  4. Step 4: Simplify right side
    3,478.92x = 13,538,965.64
  5. Step 5: Solve for x
    x = 13,538,965.64/3,478.92
  6. Step 6: Final answer
    x = 3,891.72

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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.