Home / 5,380.39-8,068.76-1,869.48

Finding the Fourth Proportional to 5,380.39, 8,068.76 and 1,869.48

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Solution

The fourth proportional to 5,380.39, 8,068.76 and 1,869.48 is: 2,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.39 : 8,068.76 = 1,869.48 : x
  2. Step 2: Convert to fraction form
    5,380.39/8,068.76 = 1,869.48/x
  3. Step 3: Cross multiply
    5,380.39x = 8,068.76 × 1,869.48
  4. Step 4: Simplify right side
    5,380.39x = 15,084,393.62
  5. Step 5: Solve for x
    x = 15,084,393.62/5,380.39
  6. Step 6: Final answer
    x = 2,803.59

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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.