Home / 2,079.12-2,872.14-1,662.24

Finding the Fourth Proportional to 2,079.12, 2,872.14 and 1,662.24

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Solution

The fourth proportional to 2,079.12, 2,872.14 and 1,662.24 is: 2,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.12 : 2,872.14 = 1,662.24 : x
  2. Step 2: Convert to fraction form
    2,079.12/2,872.14 = 1,662.24/x
  3. Step 3: Cross multiply
    2,079.12x = 2,872.14 × 1,662.24
  4. Step 4: Simplify right side
    2,079.12x = 4,774,185.99
  5. Step 5: Solve for x
    x = 4,774,185.99/2,079.12
  6. Step 6: Final answer
    x = 2,296.25

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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.