Home / 1,550.17-2,140.73-960.90

Finding the Fourth Proportional to 1,550.17, 2,140.73 and 960.90

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Solution

The fourth proportional to 1,550.17, 2,140.73 and 960.90 is: 1,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.17 : 2,140.73 = 960.90 : x
  2. Step 2: Convert to fraction form
    1,550.17/2,140.73 = 960.90/x
  3. Step 3: Cross multiply
    1,550.17x = 2,140.73 × 960.90
  4. Step 4: Simplify right side
    1,550.17x = 2,057,027.46
  5. Step 5: Solve for x
    x = 2,057,027.46/1,550.17
  6. Step 6: Final answer
    x = 1,326.97

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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.