Home / 1,352.20-2,025.72-703.60

Finding the Fourth Proportional to 1,352.20, 2,025.72 and 703.60

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Solution

The fourth proportional to 1,352.20, 2,025.72 and 703.60 is: 1,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.20 : 2,025.72 = 703.60 : x
  2. Step 2: Convert to fraction form
    1,352.20/2,025.72 = 703.60/x
  3. Step 3: Cross multiply
    1,352.20x = 2,025.72 × 703.60
  4. Step 4: Simplify right side
    1,352.20x = 1,425,296.59
  5. Step 5: Solve for x
    x = 1,425,296.59/1,352.20
  6. Step 6: Final answer
    x = 1,054.06

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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.