Home / 3,618.36-5,392.68-3,612.90

Finding the Fourth Proportional to 3,618.36, 5,392.68 and 3,612.90

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Solution

The fourth proportional to 3,618.36, 5,392.68 and 3,612.90 is: 5,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.36 : 5,392.68 = 3,612.90 : x
  2. Step 2: Convert to fraction form
    3,618.36/5,392.68 = 3,612.90/x
  3. Step 3: Cross multiply
    3,618.36x = 5,392.68 × 3,612.90
  4. Step 4: Simplify right side
    3,618.36x = 19,483,213.57
  5. Step 5: Solve for x
    x = 19,483,213.57/3,618.36
  6. Step 6: Final answer
    x = 5,384.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.