Home / 3,618.45-5,423.78-1,536.69

Finding the Fourth Proportional to 3,618.45, 5,423.78 and 1,536.69

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Solution

The fourth proportional to 3,618.45, 5,423.78 and 1,536.69 is: 2,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.45 : 5,423.78 = 1,536.69 : x
  2. Step 2: Convert to fraction form
    3,618.45/5,423.78 = 1,536.69/x
  3. Step 3: Cross multiply
    3,618.45x = 5,423.78 × 1,536.69
  4. Step 4: Simplify right side
    3,618.45x = 8,334,660.80
  5. Step 5: Solve for x
    x = 8,334,660.80/3,618.45
  6. Step 6: Final answer
    x = 2,303.38

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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.