Home / 4,126.40-5,695.72-2,783.95

Finding the Fourth Proportional to 4,126.40, 5,695.72 and 2,783.95

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Solution

The fourth proportional to 4,126.40, 5,695.72 and 2,783.95 is: 3,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.40 : 5,695.72 = 2,783.95 : x
  2. Step 2: Convert to fraction form
    4,126.40/5,695.72 = 2,783.95/x
  3. Step 3: Cross multiply
    4,126.40x = 5,695.72 × 2,783.95
  4. Step 4: Simplify right side
    4,126.40x = 15,856,557.30
  5. Step 5: Solve for x
    x = 15,856,557.30/4,126.40
  6. Step 6: Final answer
    x = 3,842.71

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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.