Home / 2,879.48-3,973.32-1,816.84

Finding the Fourth Proportional to 2,879.48, 3,973.32 and 1,816.84

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Solution

The fourth proportional to 2,879.48, 3,973.32 and 1,816.84 is: 2,507.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.48 : 3,973.32 = 1,816.84 : x
  2. Step 2: Convert to fraction form
    2,879.48/3,973.32 = 1,816.84/x
  3. Step 3: Cross multiply
    2,879.48x = 3,973.32 × 1,816.84
  4. Step 4: Simplify right side
    2,879.48x = 7,218,891.25
  5. Step 5: Solve for x
    x = 7,218,891.25/2,879.48
  6. Step 6: Final answer
    x = 2,507.02

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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.