Home / 2,986.16-4,117.58-2,042.11

Finding the Fourth Proportional to 2,986.16, 4,117.58 and 2,042.11

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Solution

The fourth proportional to 2,986.16, 4,117.58 and 2,042.11 is: 2,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.16 : 4,117.58 = 2,042.11 : x
  2. Step 2: Convert to fraction form
    2,986.16/4,117.58 = 2,042.11/x
  3. Step 3: Cross multiply
    2,986.16x = 4,117.58 × 2,042.11
  4. Step 4: Simplify right side
    2,986.16x = 8,408,530.71
  5. Step 5: Solve for x
    x = 8,408,530.71/2,986.16
  6. Step 6: Final answer
    x = 2,815.83

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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.