Home / 5,267.75-7,902.43-1,981.07

Finding the Fourth Proportional to 5,267.75, 7,902.43 and 1,981.07

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Solution

The fourth proportional to 5,267.75, 7,902.43 and 1,981.07 is: 2,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.75 : 7,902.43 = 1,981.07 : x
  2. Step 2: Convert to fraction form
    5,267.75/7,902.43 = 1,981.07/x
  3. Step 3: Cross multiply
    5,267.75x = 7,902.43 × 1,981.07
  4. Step 4: Simplify right side
    5,267.75x = 15,655,267.00
  5. Step 5: Solve for x
    x = 15,655,267.00/5,267.75
  6. Step 6: Final answer
    x = 2,971.91

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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.