Home / 4,312.25-6,468.38-1,191.90

Finding the Fourth Proportional to 4,312.25, 6,468.38 and 1,191.90

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Solution

The fourth proportional to 4,312.25, 6,468.38 and 1,191.90 is: 1,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.25 : 6,468.38 = 1,191.90 : x
  2. Step 2: Convert to fraction form
    4,312.25/6,468.38 = 1,191.90/x
  3. Step 3: Cross multiply
    4,312.25x = 6,468.38 × 1,191.90
  4. Step 4: Simplify right side
    4,312.25x = 7,709,662.12
  5. Step 5: Solve for x
    x = 7,709,662.12/4,312.25
  6. Step 6: Final answer
    x = 1,787.85

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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.