Home / 2,922.29-4,026.96-2,081.51

Finding the Fourth Proportional to 2,922.29, 4,026.96 and 2,081.51

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Solution

The fourth proportional to 2,922.29, 4,026.96 and 2,081.51 is: 2,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.29 : 4,026.96 = 2,081.51 : x
  2. Step 2: Convert to fraction form
    2,922.29/4,026.96 = 2,081.51/x
  3. Step 3: Cross multiply
    2,922.29x = 4,026.96 × 2,081.51
  4. Step 4: Simplify right side
    2,922.29x = 8,382,152.48
  5. Step 5: Solve for x
    x = 8,382,152.48/2,922.29
  6. Step 6: Final answer
    x = 2,868.35

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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.