Home / 2,269.86-3,132.36-1,275

Finding the Fourth Proportional to 2,269.86, 3,132.36 and 1,275

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Solution

The fourth proportional to 2,269.86, 3,132.36 and 1,275 is: 1,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.86 : 3,132.36 = 1,275 : x
  2. Step 2: Convert to fraction form
    2,269.86/3,132.36 = 1,275/x
  3. Step 3: Cross multiply
    2,269.86x = 3,132.36 × 1,275
  4. Step 4: Simplify right side
    2,269.86x = 3,993,759
  5. Step 5: Solve for x
    x = 3,993,759/2,269.86
  6. Step 6: Final answer
    x = 1,759.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.