Home / 2,319.57-3,479.36-1,086.75

Finding the Fourth Proportional to 2,319.57, 3,479.36 and 1,086.75

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Solution

The fourth proportional to 2,319.57, 3,479.36 and 1,086.75 is: 1,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.57 : 3,479.36 = 1,086.75 : x
  2. Step 2: Convert to fraction form
    2,319.57/3,479.36 = 1,086.75/x
  3. Step 3: Cross multiply
    2,319.57x = 3,479.36 × 1,086.75
  4. Step 4: Simplify right side
    2,319.57x = 3,781,189.05
  5. Step 5: Solve for x
    x = 3,781,189.05/2,319.57
  6. Step 6: Final answer
    x = 1,630.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.