Home / 3,173.47-4,378.04-2,125.87

Finding the Fourth Proportional to 3,173.47, 4,378.04 and 2,125.87

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Solution

The fourth proportional to 3,173.47, 4,378.04 and 2,125.87 is: 2,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.47 : 4,378.04 = 2,125.87 : x
  2. Step 2: Convert to fraction form
    3,173.47/4,378.04 = 2,125.87/x
  3. Step 3: Cross multiply
    3,173.47x = 4,378.04 × 2,125.87
  4. Step 4: Simplify right side
    3,173.47x = 9,307,143.89
  5. Step 5: Solve for x
    x = 9,307,143.89/3,173.47
  6. Step 6: Final answer
    x = 2,932.80

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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.