Home / 3,512.74-4,820.82-3,180.44

Finding the Fourth Proportional to 3,512.74, 4,820.82 and 3,180.44

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Solution

The fourth proportional to 3,512.74, 4,820.82 and 3,180.44 is: 4,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.74 : 4,820.82 = 3,180.44 : x
  2. Step 2: Convert to fraction form
    3,512.74/4,820.82 = 3,180.44/x
  3. Step 3: Cross multiply
    3,512.74x = 4,820.82 × 3,180.44
  4. Step 4: Simplify right side
    3,512.74x = 15,332,328.76
  5. Step 5: Solve for x
    x = 15,332,328.76/3,512.74
  6. Step 6: Final answer
    x = 4,364.78

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Find fourth proportional to 1,756.37, 2,410.41 and 1,590.22
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 (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.