Home / 4,155.10-6,200.09-4,130.80

Finding the Fourth Proportional to 4,155.10, 6,200.09 and 4,130.80

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Solution

The fourth proportional to 4,155.10, 6,200.09 and 4,130.80 is: 6,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.10 : 6,200.09 = 4,130.80 : x
  2. Step 2: Convert to fraction form
    4,155.10/6,200.09 = 4,130.80/x
  3. Step 3: Cross multiply
    4,155.10x = 6,200.09 × 4,130.80
  4. Step 4: Simplify right side
    4,155.10x = 25,611,331.77
  5. Step 5: Solve for x
    x = 25,611,331.77/4,155.10
  6. Step 6: Final answer
    x = 6,163.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.