Home / 4,412.11-6,618.20-1,125.20

Finding the Fourth Proportional to 4,412.11, 6,618.20 and 1,125.20

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Solution

The fourth proportional to 4,412.11, 6,618.20 and 1,125.20 is: 1,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,412.11 : 6,618.20 = 1,125.20 : x
  2. Step 2: Convert to fraction form
    4,412.11/6,618.20 = 1,125.20/x
  3. Step 3: Cross multiply
    4,412.11x = 6,618.20 × 1,125.20
  4. Step 4: Simplify right side
    4,412.11x = 7,446,798.64
  5. Step 5: Solve for x
    x = 7,446,798.64/4,412.11
  6. Step 6: Final answer
    x = 1,687.81

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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.