Home / 3,727.36-5,140.76-3,278.28

Finding the Fourth Proportional to 3,727.36, 5,140.76 and 3,278.28

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Solution

The fourth proportional to 3,727.36, 5,140.76 and 3,278.28 is: 4,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.36 : 5,140.76 = 3,278.28 : x
  2. Step 2: Convert to fraction form
    3,727.36/5,140.76 = 3,278.28/x
  3. Step 3: Cross multiply
    3,727.36x = 5,140.76 × 3,278.28
  4. Step 4: Simplify right side
    3,727.36x = 16,852,834.30
  5. Step 5: Solve for x
    x = 16,852,834.30/3,727.36
  6. Step 6: Final answer
    x = 4,521.39

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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.