Home / 6,811.90-10,210.25-2,649.92

Finding the Fourth Proportional to 6,811.90, 10,210.25 and 2,649.92

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Solution

The fourth proportional to 6,811.90, 10,210.25 and 2,649.92 is: 3,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.90 : 10,210.25 = 2,649.92 : x
  2. Step 2: Convert to fraction form
    6,811.90/10,210.25 = 2,649.92/x
  3. Step 3: Cross multiply
    6,811.90x = 10,210.25 × 2,649.92
  4. Step 4: Simplify right side
    6,811.90x = 27,056,301.25
  5. Step 5: Solve for x
    x = 27,056,301.25/6,811.90
  6. Step 6: Final answer
    x = 3,971.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.