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Finding the Fourth Proportional to 5,677.95, 7,835.27 and 3,287.51

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Solution

The fourth proportional to 5,677.95, 7,835.27 and 3,287.51 is: 4,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.95 : 7,835.27 = 3,287.51 : x
  2. Step 2: Convert to fraction form
    5,677.95/7,835.27 = 3,287.51/x
  3. Step 3: Cross multiply
    5,677.95x = 7,835.27 × 3,287.51
  4. Step 4: Simplify right side
    5,677.95x = 25,758,472.86
  5. Step 5: Solve for x
    x = 25,758,472.86/5,677.95
  6. Step 6: Final answer
    x = 4,536.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.