Home / 5,084.40-7,620.50-2,890.10

Finding the Fourth Proportional to 5,084.40, 7,620.50 and 2,890.10

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Solution

The fourth proportional to 5,084.40, 7,620.50 and 2,890.10 is: 4,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,084.40 : 7,620.50 = 2,890.10 : x
  2. Step 2: Convert to fraction form
    5,084.40/7,620.50 = 2,890.10/x
  3. Step 3: Cross multiply
    5,084.40x = 7,620.50 × 2,890.10
  4. Step 4: Simplify right side
    5,084.40x = 22,024,007.05
  5. Step 5: Solve for x
    x = 22,024,007.05/5,084.40
  6. Step 6: Final answer
    x = 4,331.68

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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.