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Finding the Fourth Proportional to 5,307.39, 7,323.39 and 3,182.88

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Solution

The fourth proportional to 5,307.39, 7,323.39 and 3,182.88 is: 4,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.39 : 7,323.39 = 3,182.88 : x
  2. Step 2: Convert to fraction form
    5,307.39/7,323.39 = 3,182.88/x
  3. Step 3: Cross multiply
    5,307.39x = 7,323.39 × 3,182.88
  4. Step 4: Simplify right side
    5,307.39x = 23,309,471.56
  5. Step 5: Solve for x
    x = 23,309,471.56/5,307.39
  6. Step 6: Final answer
    x = 4,391.89

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1.5x scale

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.