Home / 1,899.15-2,621.92-1,447.47

Finding the Fourth Proportional to 1,899.15, 2,621.92 and 1,447.47

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Solution

The fourth proportional to 1,899.15, 2,621.92 and 1,447.47 is: 1,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.15 : 2,621.92 = 1,447.47 : x
  2. Step 2: Convert to fraction form
    1,899.15/2,621.92 = 1,447.47/x
  3. Step 3: Cross multiply
    1,899.15x = 2,621.92 × 1,447.47
  4. Step 4: Simplify right side
    1,899.15x = 3,795,149.64
  5. Step 5: Solve for x
    x = 3,795,149.64/1,899.15
  6. Step 6: Final answer
    x = 1,998.35

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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.