Home / 7,042.88-10,561.20-2,110.88

Finding the Fourth Proportional to 7,042.88, 10,561.20 and 2,110.88

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Solution

The fourth proportional to 7,042.88, 10,561.20 and 2,110.88 is: 3,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.88 : 10,561.20 = 2,110.88 : x
  2. Step 2: Convert to fraction form
    7,042.88/10,561.20 = 2,110.88/x
  3. Step 3: Cross multiply
    7,042.88x = 10,561.20 × 2,110.88
  4. Step 4: Simplify right side
    7,042.88x = 22,293,425.86
  5. Step 5: Solve for x
    x = 22,293,425.86/7,042.88
  6. Step 6: Final answer
    x = 3,165.38

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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.