Home / 3,260.04-4,890.06-1,285.80

Finding the Fourth Proportional to 3,260.04, 4,890.06 and 1,285.80

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Solution

The fourth proportional to 3,260.04, 4,890.06 and 1,285.80 is: 1,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.04 : 4,890.06 = 1,285.80 : x
  2. Step 2: Convert to fraction form
    3,260.04/4,890.06 = 1,285.80/x
  3. Step 3: Cross multiply
    3,260.04x = 4,890.06 × 1,285.80
  4. Step 4: Simplify right side
    3,260.04x = 6,287,639.15
  5. Step 5: Solve for x
    x = 6,287,639.15/3,260.04
  6. Step 6: Final answer
    x = 1,928.70

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Similar ratio
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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.