Home / 2,898.08-3,999.24-1,571.74

Finding the Fourth Proportional to 2,898.08, 3,999.24 and 1,571.74

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Solution

The fourth proportional to 2,898.08, 3,999.24 and 1,571.74 is: 2,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.08 : 3,999.24 = 1,571.74 : x
  2. Step 2: Convert to fraction form
    2,898.08/3,999.24 = 1,571.74/x
  3. Step 3: Cross multiply
    2,898.08x = 3,999.24 × 1,571.74
  4. Step 4: Simplify right side
    2,898.08x = 6,285,755.48
  5. Step 5: Solve for x
    x = 6,285,755.48/2,898.08
  6. Step 6: Final answer
    x = 2,168.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.