Home / 2,618.26-3,613.16-1,439.30

Finding the Fourth Proportional to 2,618.26, 3,613.16 and 1,439.30

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Solution

The fourth proportional to 2,618.26, 3,613.16 and 1,439.30 is: 1,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.26 : 3,613.16 = 1,439.30 : x
  2. Step 2: Convert to fraction form
    2,618.26/3,613.16 = 1,439.30/x
  3. Step 3: Cross multiply
    2,618.26x = 3,613.16 × 1,439.30
  4. Step 4: Simplify right side
    2,618.26x = 5,200,421.19
  5. Step 5: Solve for x
    x = 5,200,421.19/2,618.26
  6. Step 6: Final answer
    x = 1,986.21

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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.