Home / 6,860.28-10,290.38-1,666.12

Finding the Fourth Proportional to 6,860.28, 10,290.38 and 1,666.12

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Solution

The fourth proportional to 6,860.28, 10,290.38 and 1,666.12 is: 2,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.28 : 10,290.38 = 1,666.12 : x
  2. Step 2: Convert to fraction form
    6,860.28/10,290.38 = 1,666.12/x
  3. Step 3: Cross multiply
    6,860.28x = 10,290.38 × 1,666.12
  4. Step 4: Simplify right side
    6,860.28x = 17,145,007.93
  5. Step 5: Solve for x
    x = 17,145,007.93/6,860.28
  6. Step 6: Final answer
    x = 2,499.17

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Similar ratio
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1.5x scale

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.