Home / 10,561.85-15,841.95-2,770.46

Finding the Fourth Proportional to 10,561.85, 15,841.95 and 2,770.46

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Solution

The fourth proportional to 10,561.85, 15,841.95 and 2,770.46 is: 4,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.85 : 15,841.95 = 2,770.46 : x
  2. Step 2: Convert to fraction form
    10,561.85/15,841.95 = 2,770.46/x
  3. Step 3: Cross multiply
    10,561.85x = 15,841.95 × 2,770.46
  4. Step 4: Simplify right side
    10,561.85x = 43,889,488.80
  5. Step 5: Solve for x
    x = 43,889,488.80/10,561.85
  6. Step 6: Final answer
    x = 4,155.47

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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.