Home / 2,279.70-3,125.47-2,238.18

Finding the Fourth Proportional to 2,279.70, 3,125.47 and 2,238.18

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Solution

The fourth proportional to 2,279.70, 3,125.47 and 2,238.18 is: 3,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.70 : 3,125.47 = 2,238.18 : x
  2. Step 2: Convert to fraction form
    2,279.70/3,125.47 = 2,238.18/x
  3. Step 3: Cross multiply
    2,279.70x = 3,125.47 × 2,238.18
  4. Step 4: Simplify right side
    2,279.70x = 6,995,364.44
  5. Step 5: Solve for x
    x = 6,995,364.44/2,279.70
  6. Step 6: Final answer
    x = 3,068.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.