Home / 5,228.34-7,215.17-2,838.34

Finding the Fourth Proportional to 5,228.34, 7,215.17 and 2,838.34

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Solution

The fourth proportional to 5,228.34, 7,215.17 and 2,838.34 is: 3,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.34 : 7,215.17 = 2,838.34 : x
  2. Step 2: Convert to fraction form
    5,228.34/7,215.17 = 2,838.34/x
  3. Step 3: Cross multiply
    5,228.34x = 7,215.17 × 2,838.34
  4. Step 4: Simplify right side
    5,228.34x = 20,479,104.10
  5. Step 5: Solve for x
    x = 20,479,104.10/5,228.34
  6. Step 6: Final answer
    x = 3,916.94

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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.