Home / 2,921.16-4,364.62-2,819.08

Finding the Fourth Proportional to 2,921.16, 4,364.62 and 2,819.08

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Solution

The fourth proportional to 2,921.16, 4,364.62 and 2,819.08 is: 4,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.16 : 4,364.62 = 2,819.08 : x
  2. Step 2: Convert to fraction form
    2,921.16/4,364.62 = 2,819.08/x
  3. Step 3: Cross multiply
    2,921.16x = 4,364.62 × 2,819.08
  4. Step 4: Simplify right side
    2,921.16x = 12,304,212.95
  5. Step 5: Solve for x
    x = 12,304,212.95/2,921.16
  6. Step 6: Final answer
    x = 4,212.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.