Home / 1,640.50-2,263.93-932.38

Finding the Fourth Proportional to 1,640.50, 2,263.93 and 932.38

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Solution

The fourth proportional to 1,640.50, 2,263.93 and 932.38 is: 1,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.50 : 2,263.93 = 932.38 : x
  2. Step 2: Convert to fraction form
    1,640.50/2,263.93 = 932.38/x
  3. Step 3: Cross multiply
    1,640.50x = 2,263.93 × 932.38
  4. Step 4: Simplify right side
    1,640.50x = 2,110,835.06
  5. Step 5: Solve for x
    x = 2,110,835.06/1,640.50
  6. Step 6: Final answer
    x = 1,286.70

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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.