Home / 5,579.20-8,368.35-1,881.35

Finding the Fourth Proportional to 5,579.20, 8,368.35 and 1,881.35

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Solution

The fourth proportional to 5,579.20, 8,368.35 and 1,881.35 is: 2,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.20 : 8,368.35 = 1,881.35 : x
  2. Step 2: Convert to fraction form
    5,579.20/8,368.35 = 1,881.35/x
  3. Step 3: Cross multiply
    5,579.20x = 8,368.35 × 1,881.35
  4. Step 4: Simplify right side
    5,579.20x = 15,743,795.27
  5. Step 5: Solve for x
    x = 15,743,795.27/5,579.20
  6. Step 6: Final answer
    x = 2,821.87

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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.