Home / 3,838.77-5,300.09-2,898.36

Finding the Fourth Proportional to 3,838.77, 5,300.09 and 2,898.36

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Solution

The fourth proportional to 3,838.77, 5,300.09 and 2,898.36 is: 4,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.77 : 5,300.09 = 2,898.36 : x
  2. Step 2: Convert to fraction form
    3,838.77/5,300.09 = 2,898.36/x
  3. Step 3: Cross multiply
    3,838.77x = 5,300.09 × 2,898.36
  4. Step 4: Simplify right side
    3,838.77x = 15,361,554.36
  5. Step 5: Solve for x
    x = 15,361,554.36/3,838.77
  6. Step 6: Final answer
    x = 4,001.69

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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.