Home / 2,220.99-3,331.45-577.51

Finding the Fourth Proportional to 2,220.99, 3,331.45 and 577.51

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Solution

The fourth proportional to 2,220.99, 3,331.45 and 577.51 is: 866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.99 : 3,331.45 = 577.51 : x
  2. Step 2: Convert to fraction form
    2,220.99/3,331.45 = 577.51/x
  3. Step 3: Cross multiply
    2,220.99x = 3,331.45 × 577.51
  4. Step 4: Simplify right side
    2,220.99x = 1,923,945.69
  5. Step 5: Solve for x
    x = 1,923,945.69/2,220.99
  6. Step 6: Final answer
    x = 866.26

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.