Home / 1,356.60-2,032.20-739.38

Finding the Fourth Proportional to 1,356.60, 2,032.20 and 739.38

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Solution

The fourth proportional to 1,356.60, 2,032.20 and 739.38 is: 1,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.60 : 2,032.20 = 739.38 : x
  2. Step 2: Convert to fraction form
    1,356.60/2,032.20 = 739.38/x
  3. Step 3: Cross multiply
    1,356.60x = 2,032.20 × 739.38
  4. Step 4: Simplify right side
    1,356.60x = 1,502,568.04
  5. Step 5: Solve for x
    x = 1,502,568.04/1,356.60
  6. Step 6: Final answer
    x = 1,107.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.