Home / 2,221.02-3,331.55-577.46

Finding the Fourth Proportional to 2,221.02, 3,331.55 and 577.46

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Solution

The fourth proportional to 2,221.02, 3,331.55 and 577.46 is: 866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.02 : 3,331.55 = 577.46 : x
  2. Step 2: Convert to fraction form
    2,221.02/3,331.55 = 577.46/x
  3. Step 3: Cross multiply
    2,221.02x = 3,331.55 × 577.46
  4. Step 4: Simplify right side
    2,221.02x = 1,923,836.86
  5. Step 5: Solve for x
    x = 1,923,836.86/2,221.02
  6. Step 6: Final answer
    x = 866.20

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1.5x scale

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.