Home / 7,377.77-11,068.62-3,218.11

Finding the Fourth Proportional to 7,377.77, 11,068.62 and 3,218.11

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Solution

The fourth proportional to 7,377.77, 11,068.62 and 3,218.11 is: 4,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,377.77 : 11,068.62 = 3,218.11 : x
  2. Step 2: Convert to fraction form
    7,377.77/11,068.62 = 3,218.11/x
  3. Step 3: Cross multiply
    7,377.77x = 11,068.62 × 3,218.11
  4. Step 4: Simplify right side
    7,377.77x = 35,620,036.71
  5. Step 5: Solve for x
    x = 35,620,036.71/7,377.77
  6. Step 6: Final answer
    x = 4,828.02

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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.