Home / 3,124.28-4,305.56-2,238.55

Finding the Fourth Proportional to 3,124.28, 4,305.56 and 2,238.55

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Solution

The fourth proportional to 3,124.28, 4,305.56 and 2,238.55 is: 3,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.28 : 4,305.56 = 2,238.55 : x
  2. Step 2: Convert to fraction form
    3,124.28/4,305.56 = 2,238.55/x
  3. Step 3: Cross multiply
    3,124.28x = 4,305.56 × 2,238.55
  4. Step 4: Simplify right side
    3,124.28x = 9,638,206.17
  5. Step 5: Solve for x
    x = 9,638,206.17/3,124.28
  6. Step 6: Final answer
    x = 3,084.93

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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.