Home / 2,650.16-3,981.39-1,555.30

Finding the Fourth Proportional to 2,650.16, 3,981.39 and 1,555.30

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Solution

The fourth proportional to 2,650.16, 3,981.39 and 1,555.30 is: 2,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.16 : 3,981.39 = 1,555.30 : x
  2. Step 2: Convert to fraction form
    2,650.16/3,981.39 = 1,555.30/x
  3. Step 3: Cross multiply
    2,650.16x = 3,981.39 × 1,555.30
  4. Step 4: Simplify right side
    2,650.16x = 6,192,255.87
  5. Step 5: Solve for x
    x = 6,192,255.87/2,650.16
  6. Step 6: Final answer
    x = 2,336.56

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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.