Home / 1,908.18-2,860.92-933.66

Finding the Fourth Proportional to 1,908.18, 2,860.92 and 933.66

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Solution

The fourth proportional to 1,908.18, 2,860.92 and 933.66 is: 1,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.18 : 2,860.92 = 933.66 : x
  2. Step 2: Convert to fraction form
    1,908.18/2,860.92 = 933.66/x
  3. Step 3: Cross multiply
    1,908.18x = 2,860.92 × 933.66
  4. Step 4: Simplify right side
    1,908.18x = 2,671,126.57
  5. Step 5: Solve for x
    x = 2,671,126.57/1,908.18
  6. Step 6: Final answer
    x = 1,399.83

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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.