Home / 2,948.18-4,422.24-756.90

Finding the Fourth Proportional to 2,948.18, 4,422.24 and 756.90

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Solution

The fourth proportional to 2,948.18, 4,422.24 and 756.90 is: 1,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.18 : 4,422.24 = 756.90 : x
  2. Step 2: Convert to fraction form
    2,948.18/4,422.24 = 756.90/x
  3. Step 3: Cross multiply
    2,948.18x = 4,422.24 × 756.90
  4. Step 4: Simplify right side
    2,948.18x = 3,347,193.46
  5. Step 5: Solve for x
    x = 3,347,193.46/2,948.18
  6. Step 6: Final answer
    x = 1,135.34

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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.