Home / 7,147.04-10,721.76-2,765.12

Finding the Fourth Proportional to 7,147.04, 10,721.76 and 2,765.12

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Solution

The fourth proportional to 7,147.04, 10,721.76 and 2,765.12 is: 4,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.04 : 10,721.76 = 2,765.12 : x
  2. Step 2: Convert to fraction form
    7,147.04/10,721.76 = 2,765.12/x
  3. Step 3: Cross multiply
    7,147.04x = 10,721.76 × 2,765.12
  4. Step 4: Simplify right side
    7,147.04x = 29,646,953.01
  5. Step 5: Solve for x
    x = 29,646,953.01/7,147.04
  6. Step 6: Final answer
    x = 4,148.14

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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.