Home / 4,284.80-5,917.56-3,291.20

Finding the Fourth Proportional to 4,284.80, 5,917.56 and 3,291.20

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Solution

The fourth proportional to 4,284.80, 5,917.56 and 3,291.20 is: 4,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.80 : 5,917.56 = 3,291.20 : x
  2. Step 2: Convert to fraction form
    4,284.80/5,917.56 = 3,291.20/x
  3. Step 3: Cross multiply
    4,284.80x = 5,917.56 × 3,291.20
  4. Step 4: Simplify right side
    4,284.80x = 19,475,873.47
  5. Step 5: Solve for x
    x = 19,475,873.47/4,284.80
  6. Step 6: Final answer
    x = 4,545.34

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Half scale
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Double scale
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Similar ratio
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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.