Home / 2,879.96-4,321.15-1,712.19

Finding the Fourth Proportional to 2,879.96, 4,321.15 and 1,712.19

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Solution

The fourth proportional to 2,879.96, 4,321.15 and 1,712.19 is: 2,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.96 : 4,321.15 = 1,712.19 : x
  2. Step 2: Convert to fraction form
    2,879.96/4,321.15 = 1,712.19/x
  3. Step 3: Cross multiply
    2,879.96x = 4,321.15 × 1,712.19
  4. Step 4: Simplify right side
    2,879.96x = 7,398,617.44
  5. Step 5: Solve for x
    x = 7,398,617.44/2,879.96
  6. Step 6: Final answer
    x = 2,569.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.