Home / 4,125.77-5,685.92-2,930.80

Finding the Fourth Proportional to 4,125.77, 5,685.92 and 2,930.80

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Solution

The fourth proportional to 4,125.77, 5,685.92 and 2,930.80 is: 4,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.77 : 5,685.92 = 2,930.80 : x
  2. Step 2: Convert to fraction form
    4,125.77/5,685.92 = 2,930.80/x
  3. Step 3: Cross multiply
    4,125.77x = 5,685.92 × 2,930.80
  4. Step 4: Simplify right side
    4,125.77x = 16,664,294.34
  5. Step 5: Solve for x
    x = 16,664,294.34/4,125.77
  6. Step 6: Final answer
    x = 4,039.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.