Home / 5,310.36-7,323.30-3,420.12

Finding the Fourth Proportional to 5,310.36, 7,323.30 and 3,420.12

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Solution

The fourth proportional to 5,310.36, 7,323.30 and 3,420.12 is: 4,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.36 : 7,323.30 = 3,420.12 : x
  2. Step 2: Convert to fraction form
    5,310.36/7,323.30 = 3,420.12/x
  3. Step 3: Cross multiply
    5,310.36x = 7,323.30 × 3,420.12
  4. Step 4: Simplify right side
    5,310.36x = 25,046,564.80
  5. Step 5: Solve for x
    x = 25,046,564.80/5,310.36
  6. Step 6: Final answer
    x = 4,716.55

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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.