Home / 2,838.91-3,916.32-2,208.34

Finding the Fourth Proportional to 2,838.91, 3,916.32 and 2,208.34

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Solution

The fourth proportional to 2,838.91, 3,916.32 and 2,208.34 is: 3,046.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.91 : 3,916.32 = 2,208.34 : x
  2. Step 2: Convert to fraction form
    2,838.91/3,916.32 = 2,208.34/x
  3. Step 3: Cross multiply
    2,838.91x = 3,916.32 × 2,208.34
  4. Step 4: Simplify right side
    2,838.91x = 8,648,566.11
  5. Step 5: Solve for x
    x = 8,648,566.11/2,838.91
  6. Step 6: Final answer
    x = 3,046.44

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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.