Home / 1,973.11-2,723.61-1,187.02

Finding the Fourth Proportional to 1,973.11, 2,723.61 and 1,187.02

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Solution

The fourth proportional to 1,973.11, 2,723.61 and 1,187.02 is: 1,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.11 : 2,723.61 = 1,187.02 : x
  2. Step 2: Convert to fraction form
    1,973.11/2,723.61 = 1,187.02/x
  3. Step 3: Cross multiply
    1,973.11x = 2,723.61 × 1,187.02
  4. Step 4: Simplify right side
    1,973.11x = 3,232,979.54
  5. Step 5: Solve for x
    x = 3,232,979.54/1,973.11
  6. Step 6: Final answer
    x = 1,638.52

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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.