Home / 5,384.68-8,077.02-1,921.96

Finding the Fourth Proportional to 5,384.68, 8,077.02 and 1,921.96

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Solution

The fourth proportional to 5,384.68, 8,077.02 and 1,921.96 is: 2,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.68 : 8,077.02 = 1,921.96 : x
  2. Step 2: Convert to fraction form
    5,384.68/8,077.02 = 1,921.96/x
  3. Step 3: Cross multiply
    5,384.68x = 8,077.02 × 1,921.96
  4. Step 4: Simplify right side
    5,384.68x = 15,523,709.36
  5. Step 5: Solve for x
    x = 15,523,709.36/5,384.68
  6. Step 6: Final answer
    x = 2,882.94

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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.