Home / 4,550.76-6,279.81-2,782.53

Finding the Fourth Proportional to 4,550.76, 6,279.81 and 2,782.53

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Solution

The fourth proportional to 4,550.76, 6,279.81 and 2,782.53 is: 3,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,550.76 : 6,279.81 = 2,782.53 : x
  2. Step 2: Convert to fraction form
    4,550.76/6,279.81 = 2,782.53/x
  3. Step 3: Cross multiply
    4,550.76x = 6,279.81 × 2,782.53
  4. Step 4: Simplify right side
    4,550.76x = 17,473,759.72
  5. Step 5: Solve for x
    x = 17,473,759.72/4,550.76
  6. Step 6: Final answer
    x = 3,839.75

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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.