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Finding the Fourth Proportional to 5,580.99, 8,365.66 and 1,881.95

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Solution

The fourth proportional to 5,580.99, 8,365.66 and 1,881.95 is: 2,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.99 : 8,365.66 = 1,881.95 : x
  2. Step 2: Convert to fraction form
    5,580.99/8,365.66 = 1,881.95/x
  3. Step 3: Cross multiply
    5,580.99x = 8,365.66 × 1,881.95
  4. Step 4: Simplify right side
    5,580.99x = 15,743,707.30
  5. Step 5: Solve for x
    x = 15,743,707.30/5,580.99
  6. Step 6: Final answer
    x = 2,820.95

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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.