Home / 6,666.10-9,198.90-3,681.88

Finding the Fourth Proportional to 6,666.10, 9,198.90 and 3,681.88

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Solution

The fourth proportional to 6,666.10, 9,198.90 and 3,681.88 is: 5,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.10 : 9,198.90 = 3,681.88 : x
  2. Step 2: Convert to fraction form
    6,666.10/9,198.90 = 3,681.88/x
  3. Step 3: Cross multiply
    6,666.10x = 9,198.90 × 3,681.88
  4. Step 4: Simplify right side
    6,666.10x = 33,869,222.93
  5. Step 5: Solve for x
    x = 33,869,222.93/6,666.10
  6. Step 6: Final answer
    x = 5,080.82

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1.5x scale

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.