Home / 7,175.56-10,763.96-1,981.44

Finding the Fourth Proportional to 7,175.56, 10,763.96 and 1,981.44

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Solution

The fourth proportional to 7,175.56, 10,763.96 and 1,981.44 is: 2,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.56 : 10,763.96 = 1,981.44 : x
  2. Step 2: Convert to fraction form
    7,175.56/10,763.96 = 1,981.44/x
  3. Step 3: Cross multiply
    7,175.56x = 10,763.96 × 1,981.44
  4. Step 4: Simplify right side
    7,175.56x = 21,328,077.18
  5. Step 5: Solve for x
    x = 21,328,077.18/7,175.56
  6. Step 6: Final answer
    x = 2,972.32

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1.5x scale

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.