Home / 5,981.22-8,972.15-1,820.91

Finding the Fourth Proportional to 5,981.22, 8,972.15 and 1,820.91

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Solution

The fourth proportional to 5,981.22, 8,972.15 and 1,820.91 is: 2,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.22 : 8,972.15 = 1,820.91 : x
  2. Step 2: Convert to fraction form
    5,981.22/8,972.15 = 1,820.91/x
  3. Step 3: Cross multiply
    5,981.22x = 8,972.15 × 1,820.91
  4. Step 4: Simplify right side
    5,981.22x = 16,337,477.66
  5. Step 5: Solve for x
    x = 16,337,477.66/5,981.22
  6. Step 6: Final answer
    x = 2,731.46

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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.