Home / 6,211.30-9,317.40-3,740.80

Finding the Fourth Proportional to 6,211.30, 9,317.40 and 3,740.80

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Solution

The fourth proportional to 6,211.30, 9,317.40 and 3,740.80 is: 5,611.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.30 : 9,317.40 = 3,740.80 : x
  2. Step 2: Convert to fraction form
    6,211.30/9,317.40 = 3,740.80/x
  3. Step 3: Cross multiply
    6,211.30x = 9,317.40 × 3,740.80
  4. Step 4: Simplify right side
    6,211.30x = 34,854,529.92
  5. Step 5: Solve for x
    x = 34,854,529.92/6,211.30
  6. Step 6: Final answer
    x = 5,611.47

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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.