Home / 3,633.78-5,451.60-1,411.92

Finding the Fourth Proportional to 3,633.78, 5,451.60 and 1,411.92

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Solution

The fourth proportional to 3,633.78, 5,451.60 and 1,411.92 is: 2,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.78 : 5,451.60 = 1,411.92 : x
  2. Step 2: Convert to fraction form
    3,633.78/5,451.60 = 1,411.92/x
  3. Step 3: Cross multiply
    3,633.78x = 5,451.60 × 1,411.92
  4. Step 4: Simplify right side
    3,633.78x = 7,697,223.07
  5. Step 5: Solve for x
    x = 7,697,223.07/3,633.78
  6. Step 6: Final answer
    x = 2,118.24

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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.