Home / 5,249.61-7,873.61-2,131.11

Finding the Fourth Proportional to 5,249.61, 7,873.61 and 2,131.11

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Solution

The fourth proportional to 5,249.61, 7,873.61 and 2,131.11 is: 3,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.61 : 7,873.61 = 2,131.11 : x
  2. Step 2: Convert to fraction form
    5,249.61/7,873.61 = 2,131.11/x
  3. Step 3: Cross multiply
    5,249.61x = 7,873.61 × 2,131.11
  4. Step 4: Simplify right side
    5,249.61x = 16,779,518.35
  5. Step 5: Solve for x
    x = 16,779,518.35/5,249.61
  6. Step 6: Final answer
    x = 3,196.34

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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.