Home / 1,572.14-2,168.54-1,011.73

Finding the Fourth Proportional to 1,572.14, 2,168.54 and 1,011.73

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Solution

The fourth proportional to 1,572.14, 2,168.54 and 1,011.73 is: 1,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.14 : 2,168.54 = 1,011.73 : x
  2. Step 2: Convert to fraction form
    1,572.14/2,168.54 = 1,011.73/x
  3. Step 3: Cross multiply
    1,572.14x = 2,168.54 × 1,011.73
  4. Step 4: Simplify right side
    1,572.14x = 2,193,976.97
  5. Step 5: Solve for x
    x = 2,193,976.97/1,572.14
  6. Step 6: Final answer
    x = 1,395.54

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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.