Home / 5,458.60-8,187.90-3,611.80

Finding the Fourth Proportional to 5,458.60, 8,187.90 and 3,611.80

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Solution

The fourth proportional to 5,458.60, 8,187.90 and 3,611.80 is: 5,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.60 : 8,187.90 = 3,611.80 : x
  2. Step 2: Convert to fraction form
    5,458.60/8,187.90 = 3,611.80/x
  3. Step 3: Cross multiply
    5,458.60x = 8,187.90 × 3,611.80
  4. Step 4: Simplify right side
    5,458.60x = 29,573,057.22
  5. Step 5: Solve for x
    x = 29,573,057.22/5,458.60
  6. Step 6: Final answer
    x = 5,417.70

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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.