Home / 2,287.46-3,156.68-1,330.32

Finding the Fourth Proportional to 2,287.46, 3,156.68 and 1,330.32

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Solution

The fourth proportional to 2,287.46, 3,156.68 and 1,330.32 is: 1,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.46 : 3,156.68 = 1,330.32 : x
  2. Step 2: Convert to fraction form
    2,287.46/3,156.68 = 1,330.32/x
  3. Step 3: Cross multiply
    2,287.46x = 3,156.68 × 1,330.32
  4. Step 4: Simplify right side
    2,287.46x = 4,199,394.54
  5. Step 5: Solve for x
    x = 4,199,394.54/2,287.46
  6. Step 6: Final answer
    x = 1,835.83

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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.