Home / 3,836.91-5,294.90-2,180.91

Finding the Fourth Proportional to 3,836.91, 5,294.90 and 2,180.91

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Solution

The fourth proportional to 3,836.91, 5,294.90 and 2,180.91 is: 3,009.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.91 : 5,294.90 = 2,180.91 : x
  2. Step 2: Convert to fraction form
    3,836.91/5,294.90 = 2,180.91/x
  3. Step 3: Cross multiply
    3,836.91x = 5,294.90 × 2,180.91
  4. Step 4: Simplify right side
    3,836.91x = 11,547,700.36
  5. Step 5: Solve for x
    x = 11,547,700.36/3,836.91
  6. Step 6: Final answer
    x = 3,009.64

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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.