Home / 1,930.38-2,664.95-1,631.49

Finding the Fourth Proportional to 1,930.38, 2,664.95 and 1,631.49

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Solution

The fourth proportional to 1,930.38, 2,664.95 and 1,631.49 is: 2,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.38 : 2,664.95 = 1,631.49 : x
  2. Step 2: Convert to fraction form
    1,930.38/2,664.95 = 1,631.49/x
  3. Step 3: Cross multiply
    1,930.38x = 2,664.95 × 1,631.49
  4. Step 4: Simplify right side
    1,930.38x = 4,347,831.12
  5. Step 5: Solve for x
    x = 4,347,831.12/1,930.38
  6. Step 6: Final answer
    x = 2,252.32

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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.