Home / 2,149.39-3,223.54-1,571.20

Finding the Fourth Proportional to 2,149.39, 3,223.54 and 1,571.20

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Solution

The fourth proportional to 2,149.39, 3,223.54 and 1,571.20 is: 2,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.39 : 3,223.54 = 1,571.20 : x
  2. Step 2: Convert to fraction form
    2,149.39/3,223.54 = 1,571.20/x
  3. Step 3: Cross multiply
    2,149.39x = 3,223.54 × 1,571.20
  4. Step 4: Simplify right side
    2,149.39x = 5,064,826.05
  5. Step 5: Solve for x
    x = 5,064,826.05/2,149.39
  6. Step 6: Final answer
    x = 2,356.40

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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.