Home / 3,118.32-4,306.80-2,068.56

Finding the Fourth Proportional to 3,118.32, 4,306.80 and 2,068.56

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Solution

The fourth proportional to 3,118.32, 4,306.80 and 2,068.56 is: 2,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.32 : 4,306.80 = 2,068.56 : x
  2. Step 2: Convert to fraction form
    3,118.32/4,306.80 = 2,068.56/x
  3. Step 3: Cross multiply
    3,118.32x = 4,306.80 × 2,068.56
  4. Step 4: Simplify right side
    3,118.32x = 8,908,874.21
  5. Step 5: Solve for x
    x = 8,908,874.21/3,118.32
  6. Step 6: Final answer
    x = 2,856.95

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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.