Home / 3,698.66-5,543.55-2,135.40

Finding the Fourth Proportional to 3,698.66, 5,543.55 and 2,135.40

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Solution

The fourth proportional to 3,698.66, 5,543.55 and 2,135.40 is: 3,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.66 : 5,543.55 = 2,135.40 : x
  2. Step 2: Convert to fraction form
    3,698.66/5,543.55 = 2,135.40/x
  3. Step 3: Cross multiply
    3,698.66x = 5,543.55 × 2,135.40
  4. Step 4: Simplify right side
    3,698.66x = 11,837,696.67
  5. Step 5: Solve for x
    x = 11,837,696.67/3,698.66
  6. Step 6: Final answer
    x = 3,200.54

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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.