Home / 4,148.40-5,722.38-2,655.78

Finding the Fourth Proportional to 4,148.40, 5,722.38 and 2,655.78

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Solution

The fourth proportional to 4,148.40, 5,722.38 and 2,655.78 is: 3,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.40 : 5,722.38 = 2,655.78 : x
  2. Step 2: Convert to fraction form
    4,148.40/5,722.38 = 2,655.78/x
  3. Step 3: Cross multiply
    4,148.40x = 5,722.38 × 2,655.78
  4. Step 4: Simplify right side
    4,148.40x = 15,197,382.36
  5. Step 5: Solve for x
    x = 15,197,382.36/4,148.40
  6. Step 6: Final answer
    x = 3,663.43

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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.