Home / 2,917.18-4,025.64-1,590.85

Finding the Fourth Proportional to 2,917.18, 4,025.64 and 1,590.85

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Solution

The fourth proportional to 2,917.18, 4,025.64 and 1,590.85 is: 2,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.18 : 4,025.64 = 1,590.85 : x
  2. Step 2: Convert to fraction form
    2,917.18/4,025.64 = 1,590.85/x
  3. Step 3: Cross multiply
    2,917.18x = 4,025.64 × 1,590.85
  4. Step 4: Simplify right side
    2,917.18x = 6,404,189.39
  5. Step 5: Solve for x
    x = 6,404,189.39/2,917.18
  6. Step 6: Final answer
    x = 2,195.34

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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.