Home / 5,780.20-8,670.30-3,706.60

Finding the Fourth Proportional to 5,780.20, 8,670.30 and 3,706.60

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Solution

The fourth proportional to 5,780.20, 8,670.30 and 3,706.60 is: 5,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.20 : 8,670.30 = 3,706.60 : x
  2. Step 2: Convert to fraction form
    5,780.20/8,670.30 = 3,706.60/x
  3. Step 3: Cross multiply
    5,780.20x = 8,670.30 × 3,706.60
  4. Step 4: Simplify right side
    5,780.20x = 32,137,333.98
  5. Step 5: Solve for x
    x = 32,137,333.98/5,780.20
  6. Step 6: Final answer
    x = 5,559.90

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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.