Home / 3,639.69-5,023.08-2,147.25

Finding the Fourth Proportional to 3,639.69, 5,023.08 and 2,147.25

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Solution

The fourth proportional to 3,639.69, 5,023.08 and 2,147.25 is: 2,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.69 : 5,023.08 = 2,147.25 : x
  2. Step 2: Convert to fraction form
    3,639.69/5,023.08 = 2,147.25/x
  3. Step 3: Cross multiply
    3,639.69x = 5,023.08 × 2,147.25
  4. Step 4: Simplify right side
    3,639.69x = 10,785,808.53
  5. Step 5: Solve for x
    x = 10,785,808.53/3,639.69
  6. Step 6: Final answer
    x = 2,963.39

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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.