Home / 2,257.51-3,115.38-1,262.85

Finding the Fourth Proportional to 2,257.51, 3,115.38 and 1,262.85

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Solution

The fourth proportional to 2,257.51, 3,115.38 and 1,262.85 is: 1,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.51 : 3,115.38 = 1,262.85 : x
  2. Step 2: Convert to fraction form
    2,257.51/3,115.38 = 1,262.85/x
  3. Step 3: Cross multiply
    2,257.51x = 3,115.38 × 1,262.85
  4. Step 4: Simplify right side
    2,257.51x = 3,934,257.63
  5. Step 5: Solve for x
    x = 3,934,257.63/2,257.51
  6. Step 6: Final answer
    x = 1,742.74

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,258.51, 3,116.76 and 1,263.85
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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.