Home / 1,712.32-2,568.93-738.19

Finding the Fourth Proportional to 1,712.32, 2,568.93 and 738.19

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Solution

The fourth proportional to 1,712.32, 2,568.93 and 738.19 is: 1,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.32 : 2,568.93 = 738.19 : x
  2. Step 2: Convert to fraction form
    1,712.32/2,568.93 = 738.19/x
  3. Step 3: Cross multiply
    1,712.32x = 2,568.93 × 738.19
  4. Step 4: Simplify right side
    1,712.32x = 1,896,358.44
  5. Step 5: Solve for x
    x = 1,896,358.44/1,712.32
  6. Step 6: Final answer
    x = 1,107.48

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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.