Home / 1,972.58-2,722.06-1,133.20

Finding the Fourth Proportional to 1,972.58, 2,722.06 and 1,133.20

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Solution

The fourth proportional to 1,972.58, 2,722.06 and 1,133.20 is: 1,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.58 : 2,722.06 = 1,133.20 : x
  2. Step 2: Convert to fraction form
    1,972.58/2,722.06 = 1,133.20/x
  3. Step 3: Cross multiply
    1,972.58x = 2,722.06 × 1,133.20
  4. Step 4: Simplify right side
    1,972.58x = 3,084,638.39
  5. Step 5: Solve for x
    x = 3,084,638.39/1,972.58
  6. Step 6: Final answer
    x = 1,563.76

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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.