Home / 5,181.60-7,775.10-2,260.20

Finding the Fourth Proportional to 5,181.60, 7,775.10 and 2,260.20

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Solution

The fourth proportional to 5,181.60, 7,775.10 and 2,260.20 is: 3,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.60 : 7,775.10 = 2,260.20 : x
  2. Step 2: Convert to fraction form
    5,181.60/7,775.10 = 2,260.20/x
  3. Step 3: Cross multiply
    5,181.60x = 7,775.10 × 2,260.20
  4. Step 4: Simplify right side
    5,181.60x = 17,573,281.02
  5. Step 5: Solve for x
    x = 17,573,281.02/5,181.60
  6. Step 6: Final answer
    x = 3,391.48

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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.