Home / 3,007.90-4,149.32-1,828.14

Finding the Fourth Proportional to 3,007.90, 4,149.32 and 1,828.14

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Solution

The fourth proportional to 3,007.90, 4,149.32 and 1,828.14 is: 2,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.90 : 4,149.32 = 1,828.14 : x
  2. Step 2: Convert to fraction form
    3,007.90/4,149.32 = 1,828.14/x
  3. Step 3: Cross multiply
    3,007.90x = 4,149.32 × 1,828.14
  4. Step 4: Simplify right side
    3,007.90x = 7,585,537.86
  5. Step 5: Solve for x
    x = 7,585,537.86/3,007.90
  6. Step 6: Final answer
    x = 2,521.87

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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.