Home / 5,165.52-7,742.88-2,529.40

Finding the Fourth Proportional to 5,165.52, 7,742.88 and 2,529.40

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Solution

The fourth proportional to 5,165.52, 7,742.88 and 2,529.40 is: 3,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.52 : 7,742.88 = 2,529.40 : x
  2. Step 2: Convert to fraction form
    5,165.52/7,742.88 = 2,529.40/x
  3. Step 3: Cross multiply
    5,165.52x = 7,742.88 × 2,529.40
  4. Step 4: Simplify right side
    5,165.52x = 19,584,840.67
  5. Step 5: Solve for x
    x = 19,584,840.67/5,165.52
  6. Step 6: Final answer
    x = 3,791.46

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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.