Home / 3,613.19-4,985.79-2,019.92

Finding the Fourth Proportional to 3,613.19, 4,985.79 and 2,019.92

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Solution

The fourth proportional to 3,613.19, 4,985.79 and 2,019.92 is: 2,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.19 : 4,985.79 = 2,019.92 : x
  2. Step 2: Convert to fraction form
    3,613.19/4,985.79 = 2,019.92/x
  3. Step 3: Cross multiply
    3,613.19x = 4,985.79 × 2,019.92
  4. Step 4: Simplify right side
    3,613.19x = 10,070,872.01
  5. Step 5: Solve for x
    x = 10,070,872.01/3,613.19
  6. Step 6: Final answer
    x = 2,787.26

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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.