Home / 2,275.69-3,140.24-1,267.37

Finding the Fourth Proportional to 2,275.69, 3,140.24 and 1,267.37

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Solution

The fourth proportional to 2,275.69, 3,140.24 and 1,267.37 is: 1,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.69 : 3,140.24 = 1,267.37 : x
  2. Step 2: Convert to fraction form
    2,275.69/3,140.24 = 1,267.37/x
  3. Step 3: Cross multiply
    2,275.69x = 3,140.24 × 1,267.37
  4. Step 4: Simplify right side
    2,275.69x = 3,979,845.97
  5. Step 5: Solve for x
    x = 3,979,845.97/2,275.69
  6. Step 6: Final answer
    x = 1,748.85

Related Problems

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Half scale
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Double scale
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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.