Home / 3,698.78-5,543.56-2,379.02

Finding the Fourth Proportional to 3,698.78, 5,543.56 and 2,379.02

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Solution

The fourth proportional to 3,698.78, 5,543.56 and 2,379.02 is: 3,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.78 : 5,543.56 = 2,379.02 : x
  2. Step 2: Convert to fraction form
    3,698.78/5,543.56 = 2,379.02/x
  3. Step 3: Cross multiply
    3,698.78x = 5,543.56 × 2,379.02
  4. Step 4: Simplify right side
    3,698.78x = 13,188,240.11
  5. Step 5: Solve for x
    x = 13,188,240.11/3,698.78
  6. Step 6: Final answer
    x = 3,565.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.