Home / 3,077.20-4,246.51-1,679.95

Finding the Fourth Proportional to 3,077.20, 4,246.51 and 1,679.95

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Solution

The fourth proportional to 3,077.20, 4,246.51 and 1,679.95 is: 2,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.20 : 4,246.51 = 1,679.95 : x
  2. Step 2: Convert to fraction form
    3,077.20/4,246.51 = 1,679.95/x
  3. Step 3: Cross multiply
    3,077.20x = 4,246.51 × 1,679.95
  4. Step 4: Simplify right side
    3,077.20x = 7,133,894.84
  5. Step 5: Solve for x
    x = 7,133,894.84/3,077.20
  6. Step 6: Final answer
    x = 2,318.31

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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.