Home / 7,110.20-10,656.30-2,721.80

Finding the Fourth Proportional to 7,110.20, 10,656.30 and 2,721.80

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Solution

The fourth proportional to 7,110.20, 10,656.30 and 2,721.80 is: 4,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.20 : 10,656.30 = 2,721.80 : x
  2. Step 2: Convert to fraction form
    7,110.20/10,656.30 = 2,721.80/x
  3. Step 3: Cross multiply
    7,110.20x = 10,656.30 × 2,721.80
  4. Step 4: Simplify right side
    7,110.20x = 29,004,317.34
  5. Step 5: Solve for x
    x = 29,004,317.34/7,110.20
  6. Step 6: Final answer
    x = 4,079.25

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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.