Home / 3,390.55-5,087.99-1,442.75

Finding the Fourth Proportional to 3,390.55, 5,087.99 and 1,442.75

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Solution

The fourth proportional to 3,390.55, 5,087.99 and 1,442.75 is: 2,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.55 : 5,087.99 = 1,442.75 : x
  2. Step 2: Convert to fraction form
    3,390.55/5,087.99 = 1,442.75/x
  3. Step 3: Cross multiply
    3,390.55x = 5,087.99 × 1,442.75
  4. Step 4: Simplify right side
    3,390.55x = 7,340,675.74
  5. Step 5: Solve for x
    x = 7,340,675.74/3,390.55
  6. Step 6: Final answer
    x = 2,165.04

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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.