Home / 1,973.70-2,723.43-1,187.34

Finding the Fourth Proportional to 1,973.70, 2,723.43 and 1,187.34

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Solution

The fourth proportional to 1,973.70, 2,723.43 and 1,187.34 is: 1,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.70 : 2,723.43 = 1,187.34 : x
  2. Step 2: Convert to fraction form
    1,973.70/2,723.43 = 1,187.34/x
  3. Step 3: Cross multiply
    1,973.70x = 2,723.43 × 1,187.34
  4. Step 4: Simplify right side
    1,973.70x = 3,233,637.38
  5. Step 5: Solve for x
    x = 3,233,637.38/1,973.70
  6. Step 6: Final answer
    x = 1,638.36

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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.