Home / 5,427.83-8,144.28-1,920.50

Finding the Fourth Proportional to 5,427.83, 8,144.28 and 1,920.50

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Solution

The fourth proportional to 5,427.83, 8,144.28 and 1,920.50 is: 2,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.83 : 8,144.28 = 1,920.50 : x
  2. Step 2: Convert to fraction form
    5,427.83/8,144.28 = 1,920.50/x
  3. Step 3: Cross multiply
    5,427.83x = 8,144.28 × 1,920.50
  4. Step 4: Simplify right side
    5,427.83x = 15,641,089.74
  5. Step 5: Solve for x
    x = 15,641,089.74/5,427.83
  6. Step 6: Final answer
    x = 2,881.65

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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.