Home / 3,289.20-4,930.58-1,314.24

Finding the Fourth Proportional to 3,289.20, 4,930.58 and 1,314.24

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Solution

The fourth proportional to 3,289.20, 4,930.58 and 1,314.24 is: 1,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.20 : 4,930.58 = 1,314.24 : x
  2. Step 2: Convert to fraction form
    3,289.20/4,930.58 = 1,314.24/x
  3. Step 3: Cross multiply
    3,289.20x = 4,930.58 × 1,314.24
  4. Step 4: Simplify right side
    3,289.20x = 6,479,940.81
  5. Step 5: Solve for x
    x = 6,479,940.81/3,289.20
  6. Step 6: Final answer
    x = 1,970.07

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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.