Home / 4,378.76-6,042.69-2,806.85

Finding the Fourth Proportional to 4,378.76, 6,042.69 and 2,806.85

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Solution

The fourth proportional to 4,378.76, 6,042.69 and 2,806.85 is: 3,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.76 : 6,042.69 = 2,806.85 : x
  2. Step 2: Convert to fraction form
    4,378.76/6,042.69 = 2,806.85/x
  3. Step 3: Cross multiply
    4,378.76x = 6,042.69 × 2,806.85
  4. Step 4: Simplify right side
    4,378.76x = 16,960,939.53
  5. Step 5: Solve for x
    x = 16,960,939.53/4,378.76
  6. Step 6: Final answer
    x = 3,873.46

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Half scale
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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.