Home / 7,858.58-11,787.94-2,312.02

Finding the Fourth Proportional to 7,858.58, 11,787.94 and 2,312.02

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Solution

The fourth proportional to 7,858.58, 11,787.94 and 2,312.02 is: 3,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.58 : 11,787.94 = 2,312.02 : x
  2. Step 2: Convert to fraction form
    7,858.58/11,787.94 = 2,312.02/x
  3. Step 3: Cross multiply
    7,858.58x = 11,787.94 × 2,312.02
  4. Step 4: Simplify right side
    7,858.58x = 27,253,953.04
  5. Step 5: Solve for x
    x = 27,253,953.04/7,858.58
  6. Step 6: Final answer
    x = 3,468.05

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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.