Home / 5,281.36-7,283.30-3,940.19

Finding the Fourth Proportional to 5,281.36, 7,283.30 and 3,940.19

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Solution

The fourth proportional to 5,281.36, 7,283.30 and 3,940.19 is: 5,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.36 : 7,283.30 = 3,940.19 : x
  2. Step 2: Convert to fraction form
    5,281.36/7,283.30 = 3,940.19/x
  3. Step 3: Cross multiply
    5,281.36x = 7,283.30 × 3,940.19
  4. Step 4: Simplify right side
    5,281.36x = 28,697,620.15
  5. Step 5: Solve for x
    x = 28,697,620.15/5,281.36
  6. Step 6: Final answer
    x = 5,433.76

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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.