Home / 2,140.32-3,191.00-2,086.46

Finding the Fourth Proportional to 2,140.32, 3,191.00 and 2,086.46

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Solution

The fourth proportional to 2,140.32, 3,191.00 and 2,086.46 is: 3,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.32 : 3,191.00 = 2,086.46 : x
  2. Step 2: Convert to fraction form
    2,140.32/3,191.00 = 2,086.46/x
  3. Step 3: Cross multiply
    2,140.32x = 3,191.00 × 2,086.46
  4. Step 4: Simplify right side
    2,140.32x = 6,657,879.44
  5. Step 5: Solve for x
    x = 6,657,879.44/2,140.32
  6. Step 6: Final answer
    x = 3,110.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.