Home / 7,319.45-10,985.29-3,810.66

Finding the Fourth Proportional to 7,319.45, 10,985.29 and 3,810.66

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Solution

The fourth proportional to 7,319.45, 10,985.29 and 3,810.66 is: 5,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.45 : 10,985.29 = 3,810.66 : x
  2. Step 2: Convert to fraction form
    7,319.45/10,985.29 = 3,810.66/x
  3. Step 3: Cross multiply
    7,319.45x = 10,985.29 × 3,810.66
  4. Step 4: Simplify right side
    7,319.45x = 41,861,195.66
  5. Step 5: Solve for x
    x = 41,861,195.66/7,319.45
  6. Step 6: Final answer
    x = 5,719.18

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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.