Home / 5,855.12-8,781.03-2,106.35

Finding the Fourth Proportional to 5,855.12, 8,781.03 and 2,106.35

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Solution

The fourth proportional to 5,855.12, 8,781.03 and 2,106.35 is: 3,158.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.12 : 8,781.03 = 2,106.35 : x
  2. Step 2: Convert to fraction form
    5,855.12/8,781.03 = 2,106.35/x
  3. Step 3: Cross multiply
    5,855.12x = 8,781.03 × 2,106.35
  4. Step 4: Simplify right side
    5,855.12x = 18,495,966.88
  5. Step 5: Solve for x
    x = 18,495,966.88/5,855.12
  6. Step 6: Final answer
    x = 3,158.94

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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.