Home / 3,240.86-4,460.74-2,869.34

Finding the Fourth Proportional to 3,240.86, 4,460.74 and 2,869.34

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Solution

The fourth proportional to 3,240.86, 4,460.74 and 2,869.34 is: 3,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.86 : 4,460.74 = 2,869.34 : x
  2. Step 2: Convert to fraction form
    3,240.86/4,460.74 = 2,869.34/x
  3. Step 3: Cross multiply
    3,240.86x = 4,460.74 × 2,869.34
  4. Step 4: Simplify right side
    3,240.86x = 12,799,350.23
  5. Step 5: Solve for x
    x = 12,799,350.23/3,240.86
  6. Step 6: Final answer
    x = 3,949.37

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Double scale
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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.