Home / 5,100.38-7,649.85-1,637.18

Finding the Fourth Proportional to 5,100.38, 7,649.85 and 1,637.18

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Solution

The fourth proportional to 5,100.38, 7,649.85 and 1,637.18 is: 2,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.38 : 7,649.85 = 1,637.18 : x
  2. Step 2: Convert to fraction form
    5,100.38/7,649.85 = 1,637.18/x
  3. Step 3: Cross multiply
    5,100.38x = 7,649.85 × 1,637.18
  4. Step 4: Simplify right side
    5,100.38x = 12,524,181.42
  5. Step 5: Solve for x
    x = 12,524,181.42/5,100.38
  6. Step 6: Final answer
    x = 2,455.54

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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.