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Finding the Fourth Proportional to 5,323.70, 7,985.57 and 1,860.95

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Solution

The fourth proportional to 5,323.70, 7,985.57 and 1,860.95 is: 2,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.70 : 7,985.57 = 1,860.95 : x
  2. Step 2: Convert to fraction form
    5,323.70/7,985.57 = 1,860.95/x
  3. Step 3: Cross multiply
    5,323.70x = 7,985.57 × 1,860.95
  4. Step 4: Simplify right side
    5,323.70x = 14,860,697.26
  5. Step 5: Solve for x
    x = 14,860,697.26/5,323.70
  6. Step 6: Final answer
    x = 2,791.43

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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.