Home / 2,939.12-4,409.40-1,208.24

Finding the Fourth Proportional to 2,939.12, 4,409.40 and 1,208.24

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Solution

The fourth proportional to 2,939.12, 4,409.40 and 1,208.24 is: 1,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.12 : 4,409.40 = 1,208.24 : x
  2. Step 2: Convert to fraction form
    2,939.12/4,409.40 = 1,208.24/x
  3. Step 3: Cross multiply
    2,939.12x = 4,409.40 × 1,208.24
  4. Step 4: Simplify right side
    2,939.12x = 5,327,613.46
  5. Step 5: Solve for x
    x = 5,327,613.46/2,939.12
  6. Step 6: Final answer
    x = 1,812.66

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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.