Home / 3,899.30-5,821.19-3,762.62

Finding the Fourth Proportional to 3,899.30, 5,821.19 and 3,762.62

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Solution

The fourth proportional to 3,899.30, 5,821.19 and 3,762.62 is: 5,617.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.30 : 5,821.19 = 3,762.62 : x
  2. Step 2: Convert to fraction form
    3,899.30/5,821.19 = 3,762.62/x
  3. Step 3: Cross multiply
    3,899.30x = 5,821.19 × 3,762.62
  4. Step 4: Simplify right side
    3,899.30x = 21,902,925.92
  5. Step 5: Solve for x
    x = 21,902,925.92/3,899.30
  6. Step 6: Final answer
    x = 5,617.14

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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.