Home / 3,148.78-4,342.94-2,084.68

Finding the Fourth Proportional to 3,148.78, 4,342.94 and 2,084.68

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Solution

The fourth proportional to 3,148.78, 4,342.94 and 2,084.68 is: 2,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.78 : 4,342.94 = 2,084.68 : x
  2. Step 2: Convert to fraction form
    3,148.78/4,342.94 = 2,084.68/x
  3. Step 3: Cross multiply
    3,148.78x = 4,342.94 × 2,084.68
  4. Step 4: Simplify right side
    3,148.78x = 9,053,640.16
  5. Step 5: Solve for x
    x = 9,053,640.16/3,148.78
  6. Step 6: Final answer
    x = 2,875.29

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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.