Home / 2,786.13-3,845.85-1,901.30

Finding the Fourth Proportional to 2,786.13, 3,845.85 and 1,901.30

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Solution

The fourth proportional to 2,786.13, 3,845.85 and 1,901.30 is: 2,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.13 : 3,845.85 = 1,901.30 : x
  2. Step 2: Convert to fraction form
    2,786.13/3,845.85 = 1,901.30/x
  3. Step 3: Cross multiply
    2,786.13x = 3,845.85 × 1,901.30
  4. Step 4: Simplify right side
    2,786.13x = 7,312,095.38
  5. Step 5: Solve for x
    x = 7,312,095.38/2,786.13
  6. Step 6: Final answer
    x = 2,624.47

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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.