Home / 6,427.10-9,642.11-2,729.45

Finding the Fourth Proportional to 6,427.10, 9,642.11 and 2,729.45

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Solution

The fourth proportional to 6,427.10, 9,642.11 and 2,729.45 is: 4,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.10 : 9,642.11 = 2,729.45 : x
  2. Step 2: Convert to fraction form
    6,427.10/9,642.11 = 2,729.45/x
  3. Step 3: Cross multiply
    6,427.10x = 9,642.11 × 2,729.45
  4. Step 4: Simplify right side
    6,427.10x = 26,317,667.60
  5. Step 5: Solve for x
    x = 26,317,667.60/6,427.10
  6. Step 6: Final answer
    x = 4,094.80

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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.