Home / 5,809.11-8,712.95-2,111.19

Finding the Fourth Proportional to 5,809.11, 8,712.95 and 2,111.19

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Solution

The fourth proportional to 5,809.11, 8,712.95 and 2,111.19 is: 3,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.11 : 8,712.95 = 2,111.19 : x
  2. Step 2: Convert to fraction form
    5,809.11/8,712.95 = 2,111.19/x
  3. Step 3: Cross multiply
    5,809.11x = 8,712.95 × 2,111.19
  4. Step 4: Simplify right side
    5,809.11x = 18,394,682.35
  5. Step 5: Solve for x
    x = 18,394,682.35/5,809.11
  6. Step 6: Final answer
    x = 3,166.52

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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.