Home / 3,954.08-5,453.52-3,689.12

Finding the Fourth Proportional to 3,954.08, 5,453.52 and 3,689.12

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Solution

The fourth proportional to 3,954.08, 5,453.52 and 3,689.12 is: 5,088.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.08 : 5,453.52 = 3,689.12 : x
  2. Step 2: Convert to fraction form
    3,954.08/5,453.52 = 3,689.12/x
  3. Step 3: Cross multiply
    3,954.08x = 5,453.52 × 3,689.12
  4. Step 4: Simplify right side
    3,954.08x = 20,118,689.70
  5. Step 5: Solve for x
    x = 20,118,689.70/3,954.08
  6. Step 6: Final answer
    x = 5,088.08

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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.