Home / 6,666.62-9,196.89-3,870.50

Finding the Fourth Proportional to 6,666.62, 9,196.89 and 3,870.50

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Solution

The fourth proportional to 6,666.62, 9,196.89 and 3,870.50 is: 5,339.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.62 : 9,196.89 = 3,870.50 : x
  2. Step 2: Convert to fraction form
    6,666.62/9,196.89 = 3,870.50/x
  3. Step 3: Cross multiply
    6,666.62x = 9,196.89 × 3,870.50
  4. Step 4: Simplify right side
    6,666.62x = 35,596,562.75
  5. Step 5: Solve for x
    x = 35,596,562.75/6,666.62
  6. Step 6: Final answer
    x = 5,339.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.