Home / 5,315.40-7,334.82-3,324.60

Finding the Fourth Proportional to 5,315.40, 7,334.82 and 3,324.60

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Solution

The fourth proportional to 5,315.40, 7,334.82 and 3,324.60 is: 4,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.40 : 7,334.82 = 3,324.60 : x
  2. Step 2: Convert to fraction form
    5,315.40/7,334.82 = 3,324.60/x
  3. Step 3: Cross multiply
    5,315.40x = 7,334.82 × 3,324.60
  4. Step 4: Simplify right side
    5,315.40x = 24,385,342.57
  5. Step 5: Solve for x
    x = 24,385,342.57/5,315.40
  6. Step 6: Final answer
    x = 4,587.68

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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.