Home / 2,279.76-3,145.62-1,348.32

Finding the Fourth Proportional to 2,279.76, 3,145.62 and 1,348.32

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Solution

The fourth proportional to 2,279.76, 3,145.62 and 1,348.32 is: 1,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.76 : 3,145.62 = 1,348.32 : x
  2. Step 2: Convert to fraction form
    2,279.76/3,145.62 = 1,348.32/x
  3. Step 3: Cross multiply
    2,279.76x = 3,145.62 × 1,348.32
  4. Step 4: Simplify right side
    2,279.76x = 4,241,302.36
  5. Step 5: Solve for x
    x = 4,241,302.36/2,279.76
  6. Step 6: Final answer
    x = 1,860.42

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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.