Home / 2,861.16-4,290.24-1,217.16

Finding the Fourth Proportional to 2,861.16, 4,290.24 and 1,217.16

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Solution

The fourth proportional to 2,861.16, 4,290.24 and 1,217.16 is: 1,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.16 : 4,290.24 = 1,217.16 : x
  2. Step 2: Convert to fraction form
    2,861.16/4,290.24 = 1,217.16/x
  3. Step 3: Cross multiply
    2,861.16x = 4,290.24 × 1,217.16
  4. Step 4: Simplify right side
    2,861.16x = 5,221,908.52
  5. Step 5: Solve for x
    x = 5,221,908.52/2,861.16
  6. Step 6: Final answer
    x = 1,825.10

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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.