Home / 7,175.08-10,761.18-1,981.24

Finding the Fourth Proportional to 7,175.08, 10,761.18 and 1,981.24

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Solution

The fourth proportional to 7,175.08, 10,761.18 and 1,981.24 is: 2,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.08 : 10,761.18 = 1,981.24 : x
  2. Step 2: Convert to fraction form
    7,175.08/10,761.18 = 1,981.24/x
  3. Step 3: Cross multiply
    7,175.08x = 10,761.18 × 1,981.24
  4. Step 4: Simplify right side
    7,175.08x = 21,320,480.26
  5. Step 5: Solve for x
    x = 21,320,480.26/7,175.08
  6. Step 6: Final answer
    x = 2,971.46

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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.