Home / 2,280.21-3,420.18-1,352.88

Finding the Fourth Proportional to 2,280.21, 3,420.18 and 1,352.88

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Solution

The fourth proportional to 2,280.21, 3,420.18 and 1,352.88 is: 2,029.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.21 : 3,420.18 = 1,352.88 : x
  2. Step 2: Convert to fraction form
    2,280.21/3,420.18 = 1,352.88/x
  3. Step 3: Cross multiply
    2,280.21x = 3,420.18 × 1,352.88
  4. Step 4: Simplify right side
    2,280.21x = 4,627,093.12
  5. Step 5: Solve for x
    x = 4,627,093.12/2,280.21
  6. Step 6: Final answer
    x = 2,029.24

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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.