Home / 5,107.49-7,048.28-2,838.82

Finding the Fourth Proportional to 5,107.49, 7,048.28 and 2,838.82

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Solution

The fourth proportional to 5,107.49, 7,048.28 and 2,838.82 is: 3,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.49 : 7,048.28 = 2,838.82 : x
  2. Step 2: Convert to fraction form
    5,107.49/7,048.28 = 2,838.82/x
  3. Step 3: Cross multiply
    5,107.49x = 7,048.28 × 2,838.82
  4. Step 4: Simplify right side
    5,107.49x = 20,008,748.79
  5. Step 5: Solve for x
    x = 20,008,748.79/5,107.49
  6. Step 6: Final answer
    x = 3,917.53

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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.