Home / 3,798.80-5,240.26-2,307.28

Finding the Fourth Proportional to 3,798.80, 5,240.26 and 2,307.28

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Solution

The fourth proportional to 3,798.80, 5,240.26 and 2,307.28 is: 3,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.80 : 5,240.26 = 2,307.28 : x
  2. Step 2: Convert to fraction form
    3,798.80/5,240.26 = 2,307.28/x
  3. Step 3: Cross multiply
    3,798.80x = 5,240.26 × 2,307.28
  4. Step 4: Simplify right side
    3,798.80x = 12,090,747.09
  5. Step 5: Solve for x
    x = 12,090,747.09/3,798.80
  6. Step 6: Final answer
    x = 3,182.78

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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.