Home / 2,319.16-3,479.10-1,086.68

Finding the Fourth Proportional to 2,319.16, 3,479.10 and 1,086.68

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Solution

The fourth proportional to 2,319.16, 3,479.10 and 1,086.68 is: 1,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.16 : 3,479.10 = 1,086.68 : x
  2. Step 2: Convert to fraction form
    2,319.16/3,479.10 = 1,086.68/x
  3. Step 3: Cross multiply
    2,319.16x = 3,479.10 × 1,086.68
  4. Step 4: Simplify right side
    2,319.16x = 3,780,668.39
  5. Step 5: Solve for x
    x = 3,780,668.39/2,319.16
  6. Step 6: Final answer
    x = 1,630.19

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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.