Home / 5,359.40-8,038.78-1,611.09

Finding the Fourth Proportional to 5,359.40, 8,038.78 and 1,611.09

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Solution

The fourth proportional to 5,359.40, 8,038.78 and 1,611.09 is: 2,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.40 : 8,038.78 = 1,611.09 : x
  2. Step 2: Convert to fraction form
    5,359.40/8,038.78 = 1,611.09/x
  3. Step 3: Cross multiply
    5,359.40x = 8,038.78 × 1,611.09
  4. Step 4: Simplify right side
    5,359.40x = 12,951,190.01
  5. Step 5: Solve for x
    x = 12,951,190.01/5,359.40
  6. Step 6: Final answer
    x = 2,416.54

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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.