Home / 2,889.80-4,333.60-2,280.68

Finding the Fourth Proportional to 2,889.80, 4,333.60 and 2,280.68

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Solution

The fourth proportional to 2,889.80, 4,333.60 and 2,280.68 is: 3,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.80 : 4,333.60 = 2,280.68 : x
  2. Step 2: Convert to fraction form
    2,889.80/4,333.60 = 2,280.68/x
  3. Step 3: Cross multiply
    2,889.80x = 4,333.60 × 2,280.68
  4. Step 4: Simplify right side
    2,889.80x = 9,883,554.85
  5. Step 5: Solve for x
    x = 9,883,554.85/2,889.80
  6. Step 6: Final answer
    x = 3,420.15

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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.