Home / 5,803.60-8,705.40-3,611.20

Finding the Fourth Proportional to 5,803.60, 8,705.40 and 3,611.20

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Solution

The fourth proportional to 5,803.60, 8,705.40 and 3,611.20 is: 5,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.60 : 8,705.40 = 3,611.20 : x
  2. Step 2: Convert to fraction form
    5,803.60/8,705.40 = 3,611.20/x
  3. Step 3: Cross multiply
    5,803.60x = 8,705.40 × 3,611.20
  4. Step 4: Simplify right side
    5,803.60x = 31,436,940.48
  5. Step 5: Solve for x
    x = 31,436,940.48/5,803.60
  6. Step 6: Final answer
    x = 5,416.80

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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.