Home / 1,613.16-2,419.74-1,127.16

Finding the Fourth Proportional to 1,613.16, 2,419.74 and 1,127.16

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Solution

The fourth proportional to 1,613.16, 2,419.74 and 1,127.16 is: 1,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.16 : 2,419.74 = 1,127.16 : x
  2. Step 2: Convert to fraction form
    1,613.16/2,419.74 = 1,127.16/x
  3. Step 3: Cross multiply
    1,613.16x = 2,419.74 × 1,127.16
  4. Step 4: Simplify right side
    1,613.16x = 2,727,434.14
  5. Step 5: Solve for x
    x = 2,727,434.14/1,613.16
  6. Step 6: Final answer
    x = 1,690.74

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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.