Home / 2,655.44-3,959.78-2,470.76

Finding the Fourth Proportional to 2,655.44, 3,959.78 and 2,470.76

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Solution

The fourth proportional to 2,655.44, 3,959.78 and 2,470.76 is: 3,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.44 : 3,959.78 = 2,470.76 : x
  2. Step 2: Convert to fraction form
    2,655.44/3,959.78 = 2,470.76/x
  3. Step 3: Cross multiply
    2,655.44x = 3,959.78 × 2,470.76
  4. Step 4: Simplify right side
    2,655.44x = 9,783,666.03
  5. Step 5: Solve for x
    x = 9,783,666.03/2,655.44
  6. Step 6: Final answer
    x = 3,684.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.