Home / 3,260.20-4,890.30-2,957.80

Finding the Fourth Proportional to 3,260.20, 4,890.30 and 2,957.80

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Solution

The fourth proportional to 3,260.20, 4,890.30 and 2,957.80 is: 4,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.20 : 4,890.30 = 2,957.80 : x
  2. Step 2: Convert to fraction form
    3,260.20/4,890.30 = 2,957.80/x
  3. Step 3: Cross multiply
    3,260.20x = 4,890.30 × 2,957.80
  4. Step 4: Simplify right side
    3,260.20x = 14,464,529.34
  5. Step 5: Solve for x
    x = 14,464,529.34/3,260.20
  6. Step 6: Final answer
    x = 4,436.70

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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.