Home / 2,176.26-3,007.98-1,590.90

Finding the Fourth Proportional to 2,176.26, 3,007.98 and 1,590.90

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Solution

The fourth proportional to 2,176.26, 3,007.98 and 1,590.90 is: 2,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.26 : 3,007.98 = 1,590.90 : x
  2. Step 2: Convert to fraction form
    2,176.26/3,007.98 = 1,590.90/x
  3. Step 3: Cross multiply
    2,176.26x = 3,007.98 × 1,590.90
  4. Step 4: Simplify right side
    2,176.26x = 4,785,395.38
  5. Step 5: Solve for x
    x = 4,785,395.38/2,176.26
  6. Step 6: Final answer
    x = 2,198.91

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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.