Home / 2,445.23-3,372.89-1,449.80

Finding the Fourth Proportional to 2,445.23, 3,372.89 and 1,449.80

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Solution

The fourth proportional to 2,445.23, 3,372.89 and 1,449.80 is: 1,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.23 : 3,372.89 = 1,449.80 : x
  2. Step 2: Convert to fraction form
    2,445.23/3,372.89 = 1,449.80/x
  3. Step 3: Cross multiply
    2,445.23x = 3,372.89 × 1,449.80
  4. Step 4: Simplify right side
    2,445.23x = 4,889,991.81
  5. Step 5: Solve for x
    x = 4,889,991.81/2,445.23
  6. Step 6: Final answer
    x = 1,999.81

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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.