Home / 2,618.31-3,613.34-1,439.45

Finding the Fourth Proportional to 2,618.31, 3,613.34 and 1,439.45

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Solution

The fourth proportional to 2,618.31, 3,613.34 and 1,439.45 is: 1,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.31 : 3,613.34 = 1,439.45 : x
  2. Step 2: Convert to fraction form
    2,618.31/3,613.34 = 1,439.45/x
  3. Step 3: Cross multiply
    2,618.31x = 3,613.34 × 1,439.45
  4. Step 4: Simplify right side
    2,618.31x = 5,201,197.00
  5. Step 5: Solve for x
    x = 5,201,197.00/2,618.31
  6. Step 6: Final answer
    x = 1,986.47

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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.