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Finding the Fourth Proportional to 5,323.59, 7,988.63 and 3,379.59

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Solution

The fourth proportional to 5,323.59, 7,988.63 and 3,379.59 is: 5,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.59 : 7,988.63 = 3,379.59 : x
  2. Step 2: Convert to fraction form
    5,323.59/7,988.63 = 3,379.59/x
  3. Step 3: Cross multiply
    5,323.59x = 7,988.63 × 3,379.59
  4. Step 4: Simplify right side
    5,323.59x = 26,998,277.16
  5. Step 5: Solve for x
    x = 26,998,277.16/5,323.59
  6. Step 6: Final answer
    x = 5,071.44

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1.5x scale

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.