Home / 3,086.76-4,630.95-1,139.16

Finding the Fourth Proportional to 3,086.76, 4,630.95 and 1,139.16

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Solution

The fourth proportional to 3,086.76, 4,630.95 and 1,139.16 is: 1,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.76 : 4,630.95 = 1,139.16 : x
  2. Step 2: Convert to fraction form
    3,086.76/4,630.95 = 1,139.16/x
  3. Step 3: Cross multiply
    3,086.76x = 4,630.95 × 1,139.16
  4. Step 4: Simplify right side
    3,086.76x = 5,275,393.00
  5. Step 5: Solve for x
    x = 5,275,393.00/3,086.76
  6. Step 6: Final answer
    x = 1,709.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.