Home / 5,805.07-8,701.80-2,106.30

Finding the Fourth Proportional to 5,805.07, 8,701.80 and 2,106.30

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Solution

The fourth proportional to 5,805.07, 8,701.80 and 2,106.30 is: 3,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.07 : 8,701.80 = 2,106.30 : x
  2. Step 2: Convert to fraction form
    5,805.07/8,701.80 = 2,106.30/x
  3. Step 3: Cross multiply
    5,805.07x = 8,701.80 × 2,106.30
  4. Step 4: Simplify right side
    5,805.07x = 18,328,626.07
  5. Step 5: Solve for x
    x = 18,328,626.07/5,805.07
  6. Step 6: Final answer
    x = 3,157.35

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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.