Home / 3,407.76-4,702.86-2,231.10

Finding the Fourth Proportional to 3,407.76, 4,702.86 and 2,231.10

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Solution

The fourth proportional to 3,407.76, 4,702.86 and 2,231.10 is: 3,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.76 : 4,702.86 = 2,231.10 : x
  2. Step 2: Convert to fraction form
    3,407.76/4,702.86 = 2,231.10/x
  3. Step 3: Cross multiply
    3,407.76x = 4,702.86 × 2,231.10
  4. Step 4: Simplify right side
    3,407.76x = 10,492,550.95
  5. Step 5: Solve for x
    x = 10,492,550.95/3,407.76
  6. Step 6: Final answer
    x = 3,079.02

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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.