Home / 10,561.19-15,840.70-2,770.00

Finding the Fourth Proportional to 10,561.19, 15,840.70 and 2,770.00

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Solution

The fourth proportional to 10,561.19, 15,840.70 and 2,770.00 is: 4,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.19 : 15,840.70 = 2,770.00 : x
  2. Step 2: Convert to fraction form
    10,561.19/15,840.70 = 2,770.00/x
  3. Step 3: Cross multiply
    10,561.19x = 15,840.70 × 2,770.00
  4. Step 4: Simplify right side
    10,561.19x = 43,878,692.47
  5. Step 5: Solve for x
    x = 43,878,692.47/10,561.19
  6. Step 6: Final answer
    x = 4,154.71

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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.