Home / 2,220.54-3,330.50-577.20

Finding the Fourth Proportional to 2,220.54, 3,330.50 and 577.20

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Solution

The fourth proportional to 2,220.54, 3,330.50 and 577.20 is: 865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.54 : 3,330.50 = 577.20 : x
  2. Step 2: Convert to fraction form
    2,220.54/3,330.50 = 577.20/x
  3. Step 3: Cross multiply
    2,220.54x = 3,330.50 × 577.20
  4. Step 4: Simplify right side
    2,220.54x = 1,922,364.60
  5. Step 5: Solve for x
    x = 1,922,364.60/2,220.54
  6. Step 6: Final answer
    x = 865.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.