Home / 3,147.61-4,343.87-1,803.28

Finding the Fourth Proportional to 3,147.61, 4,343.87 and 1,803.28

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Solution

The fourth proportional to 3,147.61, 4,343.87 and 1,803.28 is: 2,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.61 : 4,343.87 = 1,803.28 : x
  2. Step 2: Convert to fraction form
    3,147.61/4,343.87 = 1,803.28/x
  3. Step 3: Cross multiply
    3,147.61x = 4,343.87 × 1,803.28
  4. Step 4: Simplify right side
    3,147.61x = 7,833,213.89
  5. Step 5: Solve for x
    x = 7,833,213.89/3,147.61
  6. Step 6: Final answer
    x = 2,488.62

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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.