Home / 4,429.12-6,111.55-2,540.78

Finding the Fourth Proportional to 4,429.12, 6,111.55 and 2,540.78

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Solution

The fourth proportional to 4,429.12, 6,111.55 and 2,540.78 is: 3,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.12 : 6,111.55 = 2,540.78 : x
  2. Step 2: Convert to fraction form
    4,429.12/6,111.55 = 2,540.78/x
  3. Step 3: Cross multiply
    4,429.12x = 6,111.55 × 2,540.78
  4. Step 4: Simplify right side
    4,429.12x = 15,528,104.01
  5. Step 5: Solve for x
    x = 15,528,104.01/4,429.12
  6. Step 6: Final answer
    x = 3,505.91

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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.