Home / 2,618.64-3,613.68-1,439.82

Finding the Fourth Proportional to 2,618.64, 3,613.68 and 1,439.82

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Solution

The fourth proportional to 2,618.64, 3,613.68 and 1,439.82 is: 1,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.64 : 3,613.68 = 1,439.82 : x
  2. Step 2: Convert to fraction form
    2,618.64/3,613.68 = 1,439.82/x
  3. Step 3: Cross multiply
    2,618.64x = 3,613.68 × 1,439.82
  4. Step 4: Simplify right side
    2,618.64x = 5,203,048.74
  5. Step 5: Solve for x
    x = 5,203,048.74/2,618.64
  6. Step 6: Final answer
    x = 1,986.93

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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.