Home / 5,384.60-8,074.47-1,921.94

Finding the Fourth Proportional to 5,384.60, 8,074.47 and 1,921.94

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Solution

The fourth proportional to 5,384.60, 8,074.47 and 1,921.94 is: 2,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.60 : 8,074.47 = 1,921.94 : x
  2. Step 2: Convert to fraction form
    5,384.60/8,074.47 = 1,921.94/x
  3. Step 3: Cross multiply
    5,384.60x = 8,074.47 × 1,921.94
  4. Step 4: Simplify right side
    5,384.60x = 15,518,646.87
  5. Step 5: Solve for x
    x = 15,518,646.87/5,384.60
  6. Step 6: Final answer
    x = 2,882.04

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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.