Home / 3,146.69-4,341.16-2,805.86

Finding the Fourth Proportional to 3,146.69, 4,341.16 and 2,805.86

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Solution

The fourth proportional to 3,146.69, 4,341.16 and 2,805.86 is: 3,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.69 : 4,341.16 = 2,805.86 : x
  2. Step 2: Convert to fraction form
    3,146.69/4,341.16 = 2,805.86/x
  3. Step 3: Cross multiply
    3,146.69x = 4,341.16 × 2,805.86
  4. Step 4: Simplify right side
    3,146.69x = 12,180,687.20
  5. Step 5: Solve for x
    x = 12,180,687.20/3,146.69
  6. Step 6: Final answer
    x = 3,870.95

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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.