Home / 4,298.88-6,449.13-1,220.88

Finding the Fourth Proportional to 4,298.88, 6,449.13 and 1,220.88

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Solution

The fourth proportional to 4,298.88, 6,449.13 and 1,220.88 is: 1,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.88 : 6,449.13 = 1,220.88 : x
  2. Step 2: Convert to fraction form
    4,298.88/6,449.13 = 1,220.88/x
  3. Step 3: Cross multiply
    4,298.88x = 6,449.13 × 1,220.88
  4. Step 4: Simplify right side
    4,298.88x = 7,873,613.83
  5. Step 5: Solve for x
    x = 7,873,613.83/4,298.88
  6. Step 6: Final answer
    x = 1,831.55

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1.5x scale

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.