Home / 2,948.21-4,422.12-868.32

Finding the Fourth Proportional to 2,948.21, 4,422.12 and 868.32

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Solution

The fourth proportional to 2,948.21, 4,422.12 and 868.32 is: 1,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.21 : 4,422.12 = 868.32 : x
  2. Step 2: Convert to fraction form
    2,948.21/4,422.12 = 868.32/x
  3. Step 3: Cross multiply
    2,948.21x = 4,422.12 × 868.32
  4. Step 4: Simplify right side
    2,948.21x = 3,839,815.24
  5. Step 5: Solve for x
    x = 3,839,815.24/2,948.21
  6. Step 6: Final answer
    x = 1,302.42

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1.5x scale

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.