Home / 3,626.85-5,442.71-1,318.35

Finding the Fourth Proportional to 3,626.85, 5,442.71 and 1,318.35

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Solution

The fourth proportional to 3,626.85, 5,442.71 and 1,318.35 is: 1,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.85 : 5,442.71 = 1,318.35 : x
  2. Step 2: Convert to fraction form
    3,626.85/5,442.71 = 1,318.35/x
  3. Step 3: Cross multiply
    3,626.85x = 5,442.71 × 1,318.35
  4. Step 4: Simplify right side
    3,626.85x = 7,175,390.14
  5. Step 5: Solve for x
    x = 7,175,390.14/3,626.85
  6. Step 6: Final answer
    x = 1,978.41

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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.