Home / 1,613.16-2,226.96-1,116.18

Finding the Fourth Proportional to 1,613.16, 2,226.96 and 1,116.18

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Solution

The fourth proportional to 1,613.16, 2,226.96 and 1,116.18 is: 1,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.16 : 2,226.96 = 1,116.18 : x
  2. Step 2: Convert to fraction form
    1,613.16/2,226.96 = 1,116.18/x
  3. Step 3: Cross multiply
    1,613.16x = 2,226.96 × 1,116.18
  4. Step 4: Simplify right side
    1,613.16x = 2,485,688.21
  5. Step 5: Solve for x
    x = 2,485,688.21/1,613.16
  6. Step 6: Final answer
    x = 1,540.88

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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.