Home / 3,126.25-4,323.54-2,794.15

Finding the Fourth Proportional to 3,126.25, 4,323.54 and 2,794.15

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Solution

The fourth proportional to 3,126.25, 4,323.54 and 2,794.15 is: 3,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.25 : 4,323.54 = 2,794.15 : x
  2. Step 2: Convert to fraction form
    3,126.25/4,323.54 = 2,794.15/x
  3. Step 3: Cross multiply
    3,126.25x = 4,323.54 × 2,794.15
  4. Step 4: Simplify right side
    3,126.25x = 12,080,619.29
  5. Step 5: Solve for x
    x = 12,080,619.29/3,126.25
  6. Step 6: Final answer
    x = 3,864.25

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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.