Home / 4,312.20-6,468.84-2,119.08

Finding the Fourth Proportional to 4,312.20, 6,468.84 and 2,119.08

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Solution

The fourth proportional to 4,312.20, 6,468.84 and 2,119.08 is: 3,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.20 : 6,468.84 = 2,119.08 : x
  2. Step 2: Convert to fraction form
    4,312.20/6,468.84 = 2,119.08/x
  3. Step 3: Cross multiply
    4,312.20x = 6,468.84 × 2,119.08
  4. Step 4: Simplify right side
    4,312.20x = 13,707,989.47
  5. Step 5: Solve for x
    x = 13,707,989.47/4,312.20
  6. Step 6: Final answer
    x = 3,178.89

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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.