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Finding the Fourth Proportional to 2,898.54, 3,999.93 and 1,572.22

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Solution

The fourth proportional to 2,898.54, 3,999.93 and 1,572.22 is: 2,169.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.54 : 3,999.93 = 1,572.22 : x
  2. Step 2: Convert to fraction form
    2,898.54/3,999.93 = 1,572.22/x
  3. Step 3: Cross multiply
    2,898.54x = 3,999.93 × 1,572.22
  4. Step 4: Simplify right side
    2,898.54x = 6,288,769.94
  5. Step 5: Solve for x
    x = 6,288,769.94/2,898.54
  6. Step 6: Final answer
    x = 2,169.63

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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.