Home / 4,407.91-6,612.04-1,121.09

Finding the Fourth Proportional to 4,407.91, 6,612.04 and 1,121.09

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Solution

The fourth proportional to 4,407.91, 6,612.04 and 1,121.09 is: 1,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.91 : 6,612.04 = 1,121.09 : x
  2. Step 2: Convert to fraction form
    4,407.91/6,612.04 = 1,121.09/x
  3. Step 3: Cross multiply
    4,407.91x = 6,612.04 × 1,121.09
  4. Step 4: Simplify right side
    4,407.91x = 7,412,691.92
  5. Step 5: Solve for x
    x = 7,412,691.92/4,407.91
  6. Step 6: Final answer
    x = 1,681.68

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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.