Home / 2,079.40-2,869.32-1,147.84

Finding the Fourth Proportional to 2,079.40, 2,869.32 and 1,147.84

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Solution

The fourth proportional to 2,079.40, 2,869.32 and 1,147.84 is: 1,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.40 : 2,869.32 = 1,147.84 : x
  2. Step 2: Convert to fraction form
    2,079.40/2,869.32 = 1,147.84/x
  3. Step 3: Cross multiply
    2,079.40x = 2,869.32 × 1,147.84
  4. Step 4: Simplify right side
    2,079.40x = 3,293,520.27
  5. Step 5: Solve for x
    x = 3,293,520.27/2,079.40
  6. Step 6: Final answer
    x = 1,583.88

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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.