Home / 5,611.74-8,406.83-3,139.07

Finding the Fourth Proportional to 5,611.74, 8,406.83 and 3,139.07

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Solution

The fourth proportional to 5,611.74, 8,406.83 and 3,139.07 is: 4,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.74 : 8,406.83 = 3,139.07 : x
  2. Step 2: Convert to fraction form
    5,611.74/8,406.83 = 3,139.07/x
  3. Step 3: Cross multiply
    5,611.74x = 8,406.83 × 3,139.07
  4. Step 4: Simplify right side
    5,611.74x = 26,389,593.66
  5. Step 5: Solve for x
    x = 26,389,593.66/5,611.74
  6. Step 6: Final answer
    x = 4,702.57

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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.