Home / 1,497.21-2,065.35-867.69

Finding the Fourth Proportional to 1,497.21, 2,065.35 and 867.69

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Solution

The fourth proportional to 1,497.21, 2,065.35 and 867.69 is: 1,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.21 : 2,065.35 = 867.69 : x
  2. Step 2: Convert to fraction form
    1,497.21/2,065.35 = 867.69/x
  3. Step 3: Cross multiply
    1,497.21x = 2,065.35 × 867.69
  4. Step 4: Simplify right side
    1,497.21x = 1,792,083.54
  5. Step 5: Solve for x
    x = 1,792,083.54/1,497.21
  6. Step 6: Final answer
    x = 1,196.95

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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.