Home / 2,618.40-3,612.30-2,286.84

Finding the Fourth Proportional to 2,618.40, 3,612.30 and 2,286.84

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Solution

The fourth proportional to 2,618.40, 3,612.30 and 2,286.84 is: 3,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.40 : 3,612.30 = 2,286.84 : x
  2. Step 2: Convert to fraction form
    2,618.40/3,612.30 = 2,286.84/x
  3. Step 3: Cross multiply
    2,618.40x = 3,612.30 × 2,286.84
  4. Step 4: Simplify right side
    2,618.40x = 8,260,752.13
  5. Step 5: Solve for x
    x = 8,260,752.13/2,618.40
  6. Step 6: Final answer
    x = 3,154.89

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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.