Home / 3,315.40-4,970.70-1,366.60

Finding the Fourth Proportional to 3,315.40, 4,970.70 and 1,366.60

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Solution

The fourth proportional to 3,315.40, 4,970.70 and 1,366.60 is: 2,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.40 : 4,970.70 = 1,366.60 : x
  2. Step 2: Convert to fraction form
    3,315.40/4,970.70 = 1,366.60/x
  3. Step 3: Cross multiply
    3,315.40x = 4,970.70 × 1,366.60
  4. Step 4: Simplify right side
    3,315.40x = 6,792,958.62
  5. Step 5: Solve for x
    x = 6,792,958.62/3,315.40
  6. Step 6: Final answer
    x = 2,048.91

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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.