Home / 4,711.82-7,066.65-2,115.50

Finding the Fourth Proportional to 4,711.82, 7,066.65 and 2,115.50

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Solution

The fourth proportional to 4,711.82, 7,066.65 and 2,115.50 is: 3,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,711.82 : 7,066.65 = 2,115.50 : x
  2. Step 2: Convert to fraction form
    4,711.82/7,066.65 = 2,115.50/x
  3. Step 3: Cross multiply
    4,711.82x = 7,066.65 × 2,115.50
  4. Step 4: Simplify right side
    4,711.82x = 14,949,498.08
  5. Step 5: Solve for x
    x = 14,949,498.08/4,711.82
  6. Step 6: Final answer
    x = 3,172.77

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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.