Home / 7,261.79-10,891.54-1,997.19

Finding the Fourth Proportional to 7,261.79, 10,891.54 and 1,997.19

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Solution

The fourth proportional to 7,261.79, 10,891.54 and 1,997.19 is: 2,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.79 : 10,891.54 = 1,997.19 : x
  2. Step 2: Convert to fraction form
    7,261.79/10,891.54 = 1,997.19/x
  3. Step 3: Cross multiply
    7,261.79x = 10,891.54 × 1,997.19
  4. Step 4: Simplify right side
    7,261.79x = 21,752,518.11
  5. Step 5: Solve for x
    x = 21,752,518.11/7,261.79
  6. Step 6: Final answer
    x = 2,995.48

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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.