Home / 8,770.78-13,159.36-3,840.01

Finding the Fourth Proportional to 8,770.78, 13,159.36 and 3,840.01

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Solution

The fourth proportional to 8,770.78, 13,159.36 and 3,840.01 is: 5,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.78 : 13,159.36 = 3,840.01 : x
  2. Step 2: Convert to fraction form
    8,770.78/13,159.36 = 3,840.01/x
  3. Step 3: Cross multiply
    8,770.78x = 13,159.36 × 3,840.01
  4. Step 4: Simplify right side
    8,770.78x = 50,532,045.90
  5. Step 5: Solve for x
    x = 50,532,045.90/8,770.78
  6. Step 6: Final answer
    x = 5,761.41

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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.