Home / 3,653.78-5,040.70-2,698.97

Finding the Fourth Proportional to 3,653.78, 5,040.70 and 2,698.97

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Solution

The fourth proportional to 3,653.78, 5,040.70 and 2,698.97 is: 3,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.78 : 5,040.70 = 2,698.97 : x
  2. Step 2: Convert to fraction form
    3,653.78/5,040.70 = 2,698.97/x
  3. Step 3: Cross multiply
    3,653.78x = 5,040.70 × 2,698.97
  4. Step 4: Simplify right side
    3,653.78x = 13,604,666.13
  5. Step 5: Solve for x
    x = 13,604,666.13/3,653.78
  6. Step 6: Final answer
    x = 3,723.45

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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.