Home / 4,130.80-6,205.68-2,672.80

Finding the Fourth Proportional to 4,130.80, 6,205.68 and 2,672.80

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Solution

The fourth proportional to 4,130.80, 6,205.68 and 2,672.80 is: 4,015.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.80 : 6,205.68 = 2,672.80 : x
  2. Step 2: Convert to fraction form
    4,130.80/6,205.68 = 2,672.80/x
  3. Step 3: Cross multiply
    4,130.80x = 6,205.68 × 2,672.80
  4. Step 4: Simplify right side
    4,130.80x = 16,586,541.50
  5. Step 5: Solve for x
    x = 16,586,541.50/4,130.80
  6. Step 6: Final answer
    x = 4,015.33

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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.