Home / 2,279.28-3,137.50-1,965.58

Finding the Fourth Proportional to 2,279.28, 3,137.50 and 1,965.58

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Solution

The fourth proportional to 2,279.28, 3,137.50 and 1,965.58 is: 2,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.28 : 3,137.50 = 1,965.58 : x
  2. Step 2: Convert to fraction form
    2,279.28/3,137.50 = 1,965.58/x
  3. Step 3: Cross multiply
    2,279.28x = 3,137.50 × 1,965.58
  4. Step 4: Simplify right side
    2,279.28x = 6,167,002.34
  5. Step 5: Solve for x
    x = 6,167,002.34/2,279.28
  6. Step 6: Final answer
    x = 2,705.69

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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.