Home / 3,186.68-4,397.76-1,860.20

Finding the Fourth Proportional to 3,186.68, 4,397.76 and 1,860.20

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Solution

The fourth proportional to 3,186.68, 4,397.76 and 1,860.20 is: 2,567.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.68 : 4,397.76 = 1,860.20 : x
  2. Step 2: Convert to fraction form
    3,186.68/4,397.76 = 1,860.20/x
  3. Step 3: Cross multiply
    3,186.68x = 4,397.76 × 1,860.20
  4. Step 4: Simplify right side
    3,186.68x = 8,180,713.15
  5. Step 5: Solve for x
    x = 8,180,713.15/3,186.68
  6. Step 6: Final answer
    x = 2,567.16

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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.