Home / 1,245.05-1,867.57-465.02

Finding the Fourth Proportional to 1,245.05, 1,867.57 and 465.02

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Solution

The fourth proportional to 1,245.05, 1,867.57 and 465.02 is: 697.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.05 : 1,867.57 = 465.02 : x
  2. Step 2: Convert to fraction form
    1,245.05/1,867.57 = 465.02/x
  3. Step 3: Cross multiply
    1,245.05x = 1,867.57 × 465.02
  4. Step 4: Simplify right side
    1,245.05x = 868,446.90
  5. Step 5: Solve for x
    x = 868,446.90/1,245.05
  6. Step 6: Final answer
    x = 697.52

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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.