Home / 5,228.52-7,215.32-2,838.49

Finding the Fourth Proportional to 5,228.52, 7,215.32 and 2,838.49

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Solution

The fourth proportional to 5,228.52, 7,215.32 and 2,838.49 is: 3,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.52 : 7,215.32 = 2,838.49 : x
  2. Step 2: Convert to fraction form
    5,228.52/7,215.32 = 2,838.49/x
  3. Step 3: Cross multiply
    5,228.52x = 7,215.32 × 2,838.49
  4. Step 4: Simplify right side
    5,228.52x = 20,480,602.72
  5. Step 5: Solve for x
    x = 20,480,602.72/5,228.52
  6. Step 6: Final answer
    x = 3,917.10

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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.