Home / 2,838.38-3,913.90-1,775.76

Finding the Fourth Proportional to 2,838.38, 3,913.90 and 1,775.76

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Solution

The fourth proportional to 2,838.38, 3,913.90 and 1,775.76 is: 2,448.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.38 : 3,913.90 = 1,775.76 : x
  2. Step 2: Convert to fraction form
    2,838.38/3,913.90 = 1,775.76/x
  3. Step 3: Cross multiply
    2,838.38x = 3,913.90 × 1,775.76
  4. Step 4: Simplify right side
    2,838.38x = 6,950,147.06
  5. Step 5: Solve for x
    x = 6,950,147.06/2,838.38
  6. Step 6: Final answer
    x = 2,448.63

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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.