Home / 3,685.13-5,068.05-2,930.21

Finding the Fourth Proportional to 3,685.13, 5,068.05 and 2,930.21

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Solution

The fourth proportional to 3,685.13, 5,068.05 and 2,930.21 is: 4,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.13 : 5,068.05 = 2,930.21 : x
  2. Step 2: Convert to fraction form
    3,685.13/5,068.05 = 2,930.21/x
  3. Step 3: Cross multiply
    3,685.13x = 5,068.05 × 2,930.21
  4. Step 4: Simplify right side
    3,685.13x = 14,850,450.79
  5. Step 5: Solve for x
    x = 14,850,450.79/3,685.13
  6. Step 6: Final answer
    x = 4,029.83

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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.