Home / 4,791.40-7,182.80-1,712.68

Finding the Fourth Proportional to 4,791.40, 7,182.80 and 1,712.68

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Solution

The fourth proportional to 4,791.40, 7,182.80 and 1,712.68 is: 2,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.40 : 7,182.80 = 1,712.68 : x
  2. Step 2: Convert to fraction form
    4,791.40/7,182.80 = 1,712.68/x
  3. Step 3: Cross multiply
    4,791.40x = 7,182.80 × 1,712.68
  4. Step 4: Simplify right side
    4,791.40x = 12,301,837.90
  5. Step 5: Solve for x
    x = 12,301,837.90/4,791.40
  6. Step 6: Final answer
    x = 2,567.48

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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.