Home / 5,181.61-7,148.47-3,610.61

Finding the Fourth Proportional to 5,181.61, 7,148.47 and 3,610.61

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Solution

The fourth proportional to 5,181.61, 7,148.47 and 3,610.61 is: 4,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.61 : 7,148.47 = 3,610.61 : x
  2. Step 2: Convert to fraction form
    5,181.61/7,148.47 = 3,610.61/x
  3. Step 3: Cross multiply
    5,181.61x = 7,148.47 × 3,610.61
  4. Step 4: Simplify right side
    5,181.61x = 25,810,337.27
  5. Step 5: Solve for x
    x = 25,810,337.27/5,181.61
  6. Step 6: Final answer
    x = 4,981.14

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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.