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Finding the Fourth Proportional to 6,924, 9,555.30 and 3,780.48

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Solution

The fourth proportional to 6,924, 9,555.30 and 3,780.48 is: 5,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,924 : 9,555.30 = 3,780.48 : x
  2. Step 2: Convert to fraction form
    6,924/9,555.30 = 3,780.48/x
  3. Step 3: Cross multiply
    6,924x = 9,555.30 × 3,780.48
  4. Step 4: Simplify right side
    6,924x = 36,123,620.54
  5. Step 5: Solve for x
    x = 36,123,620.54/6,924
  6. Step 6: Final answer
    x = 5,217.16

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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.