Home / 4,220.19-5,823.63-2,728.89

Finding the Fourth Proportional to 4,220.19, 5,823.63 and 2,728.89

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Solution

The fourth proportional to 4,220.19, 5,823.63 and 2,728.89 is: 3,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.19 : 5,823.63 = 2,728.89 : x
  2. Step 2: Convert to fraction form
    4,220.19/5,823.63 = 2,728.89/x
  3. Step 3: Cross multiply
    4,220.19x = 5,823.63 × 2,728.89
  4. Step 4: Simplify right side
    4,220.19x = 15,892,045.67
  5. Step 5: Solve for x
    x = 15,892,045.67/4,220.19
  6. Step 6: Final answer
    x = 3,765.72

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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.