Home / 7,856.84-11,785.72-2,926.08

Finding the Fourth Proportional to 7,856.84, 11,785.72 and 2,926.08

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Solution

The fourth proportional to 7,856.84, 11,785.72 and 2,926.08 is: 4,389.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.84 : 11,785.72 = 2,926.08 : x
  2. Step 2: Convert to fraction form
    7,856.84/11,785.72 = 2,926.08/x
  3. Step 3: Cross multiply
    7,856.84x = 11,785.72 × 2,926.08
  4. Step 4: Simplify right side
    7,856.84x = 34,485,959.58
  5. Step 5: Solve for x
    x = 34,485,959.58/7,856.84
  6. Step 6: Final answer
    x = 4,389.29

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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.