Home / 5,107.52-7,048.41-2,869.49

Finding the Fourth Proportional to 5,107.52, 7,048.41 and 2,869.49

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Solution

The fourth proportional to 5,107.52, 7,048.41 and 2,869.49 is: 3,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.52 : 7,048.41 = 2,869.49 : x
  2. Step 2: Convert to fraction form
    5,107.52/7,048.41 = 2,869.49/x
  3. Step 3: Cross multiply
    5,107.52x = 7,048.41 × 2,869.49
  4. Step 4: Simplify right side
    5,107.52x = 20,225,327.66
  5. Step 5: Solve for x
    x = 20,225,327.66/5,107.52
  6. Step 6: Final answer
    x = 3,959.91

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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.