Home / 2,267.48-3,129.24-1,272.70

Finding the Fourth Proportional to 2,267.48, 3,129.24 and 1,272.70

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Solution

The fourth proportional to 2,267.48, 3,129.24 and 1,272.70 is: 1,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.48 : 3,129.24 = 1,272.70 : x
  2. Step 2: Convert to fraction form
    2,267.48/3,129.24 = 1,272.70/x
  3. Step 3: Cross multiply
    2,267.48x = 3,129.24 × 1,272.70
  4. Step 4: Simplify right side
    2,267.48x = 3,982,583.75
  5. Step 5: Solve for x
    x = 3,982,583.75/2,267.48
  6. Step 6: Final answer
    x = 1,756.39

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1.5x scale

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.