Home / 4,218.25-5,821.19-2,355.25

Finding the Fourth Proportional to 4,218.25, 5,821.19 and 2,355.25

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Solution

The fourth proportional to 4,218.25, 5,821.19 and 2,355.25 is: 3,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.25 : 5,821.19 = 2,355.25 : x
  2. Step 2: Convert to fraction form
    4,218.25/5,821.19 = 2,355.25/x
  3. Step 3: Cross multiply
    4,218.25x = 5,821.19 × 2,355.25
  4. Step 4: Simplify right side
    4,218.25x = 13,710,357.75
  5. Step 5: Solve for x
    x = 13,710,357.75/4,218.25
  6. Step 6: Final answer
    x = 3,250.25

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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.