Home / 2,917.09-4,025.57-1,590.78

Finding the Fourth Proportional to 2,917.09, 4,025.57 and 1,590.78

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Solution

The fourth proportional to 2,917.09, 4,025.57 and 1,590.78 is: 2,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.09 : 4,025.57 = 1,590.78 : x
  2. Step 2: Convert to fraction form
    2,917.09/4,025.57 = 1,590.78/x
  3. Step 3: Cross multiply
    2,917.09x = 4,025.57 × 1,590.78
  4. Step 4: Simplify right side
    2,917.09x = 6,403,796.24
  5. Step 5: Solve for x
    x = 6,403,796.24/2,917.09
  6. Step 6: Final answer
    x = 2,195.27

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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.