Home / 5,441.90-8,165.55-2,155.10

Finding the Fourth Proportional to 5,441.90, 8,165.55 and 2,155.10

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Solution

The fourth proportional to 5,441.90, 8,165.55 and 2,155.10 is: 3,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.90 : 8,165.55 = 2,155.10 : x
  2. Step 2: Convert to fraction form
    5,441.90/8,165.55 = 2,155.10/x
  3. Step 3: Cross multiply
    5,441.90x = 8,165.55 × 2,155.10
  4. Step 4: Simplify right side
    5,441.90x = 17,597,576.81
  5. Step 5: Solve for x
    x = 17,597,576.81/5,441.90
  6. Step 6: Final answer
    x = 3,233.72

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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.