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Finding the Fourth Proportional to 5,808.80, 8,706.88 and 1,910.40

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Solution

The fourth proportional to 5,808.80, 8,706.88 and 1,910.40 is: 2,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.80 : 8,706.88 = 1,910.40 : x
  2. Step 2: Convert to fraction form
    5,808.80/8,706.88 = 1,910.40/x
  3. Step 3: Cross multiply
    5,808.80x = 8,706.88 × 1,910.40
  4. Step 4: Simplify right side
    5,808.80x = 16,633,623.55
  5. Step 5: Solve for x
    x = 16,633,623.55/5,808.80
  6. Step 6: Final answer
    x = 2,863.52

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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.