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Finding the Fourth Proportional to 7,856.66, 11,784.51 and 2,924.06

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Solution

The fourth proportional to 7,856.66, 11,784.51 and 2,924.06 is: 4,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.66 : 11,784.51 = 2,924.06 : x
  2. Step 2: Convert to fraction form
    7,856.66/11,784.51 = 2,924.06/x
  3. Step 3: Cross multiply
    7,856.66x = 11,784.51 × 2,924.06
  4. Step 4: Simplify right side
    7,856.66x = 34,458,555.39
  5. Step 5: Solve for x
    x = 34,458,555.39/7,856.66
  6. Step 6: Final answer
    x = 4,385.90

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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.