Home / 1,532.14-2,113.86-868.94

Finding the Fourth Proportional to 1,532.14, 2,113.86 and 868.94

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Solution

The fourth proportional to 1,532.14, 2,113.86 and 868.94 is: 1,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.14 : 2,113.86 = 868.94 : x
  2. Step 2: Convert to fraction form
    1,532.14/2,113.86 = 868.94/x
  3. Step 3: Cross multiply
    1,532.14x = 2,113.86 × 868.94
  4. Step 4: Simplify right side
    1,532.14x = 1,836,817.51
  5. Step 5: Solve for x
    x = 1,836,817.51/1,532.14
  6. Step 6: Final answer
    x = 1,198.86

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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.