Home / 1,973.38-2,723.34-1,089.28

Finding the Fourth Proportional to 1,973.38, 2,723.34 and 1,089.28

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Solution

The fourth proportional to 1,973.38, 2,723.34 and 1,089.28 is: 1,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.38 : 2,723.34 = 1,089.28 : x
  2. Step 2: Convert to fraction form
    1,973.38/2,723.34 = 1,089.28/x
  3. Step 3: Cross multiply
    1,973.38x = 2,723.34 × 1,089.28
  4. Step 4: Simplify right side
    1,973.38x = 2,966,479.80
  5. Step 5: Solve for x
    x = 2,966,479.80/1,973.38
  6. Step 6: Final answer
    x = 1,503.25

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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.