Home / 3,127.78-4,314.60-2,007.46

Finding the Fourth Proportional to 3,127.78, 4,314.60 and 2,007.46

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Solution

The fourth proportional to 3,127.78, 4,314.60 and 2,007.46 is: 2,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.78 : 4,314.60 = 2,007.46 : x
  2. Step 2: Convert to fraction form
    3,127.78/4,314.60 = 2,007.46/x
  3. Step 3: Cross multiply
    3,127.78x = 4,314.60 × 2,007.46
  4. Step 4: Simplify right side
    3,127.78x = 8,661,376.13
  5. Step 5: Solve for x
    x = 8,661,376.13/3,127.78
  6. Step 6: Final answer
    x = 2,769.18

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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.