Home / 1,640.43-2,263.86-932.22

Finding the Fourth Proportional to 1,640.43, 2,263.86 and 932.22

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Solution

The fourth proportional to 1,640.43, 2,263.86 and 932.22 is: 1,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.43 : 2,263.86 = 932.22 : x
  2. Step 2: Convert to fraction form
    1,640.43/2,263.86 = 932.22/x
  3. Step 3: Cross multiply
    1,640.43x = 2,263.86 × 932.22
  4. Step 4: Simplify right side
    1,640.43x = 2,110,415.57
  5. Step 5: Solve for x
    x = 2,110,415.57/1,640.43
  6. Step 6: Final answer
    x = 1,286.50

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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.