Home / 1,972.62-2,721.99-1,133.19

Finding the Fourth Proportional to 1,972.62, 2,721.99 and 1,133.19

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Solution

The fourth proportional to 1,972.62, 2,721.99 and 1,133.19 is: 1,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.62 : 2,721.99 = 1,133.19 : x
  2. Step 2: Convert to fraction form
    1,972.62/2,721.99 = 1,133.19/x
  3. Step 3: Cross multiply
    1,972.62x = 2,721.99 × 1,133.19
  4. Step 4: Simplify right side
    1,972.62x = 3,084,531.85
  5. Step 5: Solve for x
    x = 3,084,531.85/1,972.62
  6. Step 6: Final answer
    x = 1,563.67

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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.