Home / 6,921.50-10,382.04-2,762.55

Finding the Fourth Proportional to 6,921.50, 10,382.04 and 2,762.55

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Solution

The fourth proportional to 6,921.50, 10,382.04 and 2,762.55 is: 4,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.50 : 10,382.04 = 2,762.55 : x
  2. Step 2: Convert to fraction form
    6,921.50/10,382.04 = 2,762.55/x
  3. Step 3: Cross multiply
    6,921.50x = 10,382.04 × 2,762.55
  4. Step 4: Simplify right side
    6,921.50x = 28,680,904.60
  5. Step 5: Solve for x
    x = 28,680,904.60/6,921.50
  6. Step 6: Final answer
    x = 4,143.74

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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.