Home / 6,577.20-9,078.48-4,220.10

Finding the Fourth Proportional to 6,577.20, 9,078.48 and 4,220.10

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Solution

The fourth proportional to 6,577.20, 9,078.48 and 4,220.10 is: 5,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,577.20 : 9,078.48 = 4,220.10 : x
  2. Step 2: Convert to fraction form
    6,577.20/9,078.48 = 4,220.10/x
  3. Step 3: Cross multiply
    6,577.20x = 9,078.48 × 4,220.10
  4. Step 4: Simplify right side
    6,577.20x = 38,312,093.45
  5. Step 5: Solve for x
    x = 38,312,093.45/6,577.20
  6. Step 6: Final answer
    x = 5,824.99

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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.