Home / 5,503.70-8,256.96-2,220.50

Finding the Fourth Proportional to 5,503.70, 8,256.96 and 2,220.50

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Solution

The fourth proportional to 5,503.70, 8,256.96 and 2,220.50 is: 3,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.70 : 8,256.96 = 2,220.50 : x
  2. Step 2: Convert to fraction form
    5,503.70/8,256.96 = 2,220.50/x
  3. Step 3: Cross multiply
    5,503.70x = 8,256.96 × 2,220.50
  4. Step 4: Simplify right side
    5,503.70x = 18,334,538.40
  5. Step 5: Solve for x
    x = 18,334,538.40/5,503.70
  6. Step 6: Final answer
    x = 3,331.31

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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.