Home / 3,002.90-4,139.04-2,007.81

Finding the Fourth Proportional to 3,002.90, 4,139.04 and 2,007.81

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Solution

The fourth proportional to 3,002.90, 4,139.04 and 2,007.81 is: 2,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.90 : 4,139.04 = 2,007.81 : x
  2. Step 2: Convert to fraction form
    3,002.90/4,139.04 = 2,007.81/x
  3. Step 3: Cross multiply
    3,002.90x = 4,139.04 × 2,007.81
  4. Step 4: Simplify right side
    3,002.90x = 8,310,398.37
  5. Step 5: Solve for x
    x = 8,310,398.37/3,002.90
  6. Step 6: Final answer
    x = 2,767.46

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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.