Home / 5,227.90-7,841.85-1,765.10

Finding the Fourth Proportional to 5,227.90, 7,841.85 and 1,765.10

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Solution

The fourth proportional to 5,227.90, 7,841.85 and 1,765.10 is: 2,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.90 : 7,841.85 = 1,765.10 : x
  2. Step 2: Convert to fraction form
    5,227.90/7,841.85 = 1,765.10/x
  3. Step 3: Cross multiply
    5,227.90x = 7,841.85 × 1,765.10
  4. Step 4: Simplify right side
    5,227.90x = 13,841,649.44
  5. Step 5: Solve for x
    x = 13,841,649.44/5,227.90
  6. Step 6: Final answer
    x = 2,647.65

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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.