Home / 7,721.88-10,655.82-4,892.28

Finding the Fourth Proportional to 7,721.88, 10,655.82 and 4,892.28

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Solution

The fourth proportional to 7,721.88, 10,655.82 and 4,892.28 is: 6,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.88 : 10,655.82 = 4,892.28 : x
  2. Step 2: Convert to fraction form
    7,721.88/10,655.82 = 4,892.28/x
  3. Step 3: Cross multiply
    7,721.88x = 10,655.82 × 4,892.28
  4. Step 4: Simplify right side
    7,721.88x = 52,131,255.07
  5. Step 5: Solve for x
    x = 52,131,255.07/7,721.88
  6. Step 6: Final answer
    x = 6,751.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.