Home / 4,259.10-6,388.65-3,165.60

Finding the Fourth Proportional to 4,259.10, 6,388.65 and 3,165.60

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Solution

The fourth proportional to 4,259.10, 6,388.65 and 3,165.60 is: 4,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.10 : 6,388.65 = 3,165.60 : x
  2. Step 2: Convert to fraction form
    4,259.10/6,388.65 = 3,165.60/x
  3. Step 3: Cross multiply
    4,259.10x = 6,388.65 × 3,165.60
  4. Step 4: Simplify right side
    4,259.10x = 20,223,910.44
  5. Step 5: Solve for x
    x = 20,223,910.44/4,259.10
  6. Step 6: Final answer
    x = 4,748.40

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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.