Home / 4,942.81-6,821.18-2,956.15

Finding the Fourth Proportional to 4,942.81, 6,821.18 and 2,956.15

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Solution

The fourth proportional to 4,942.81, 6,821.18 and 2,956.15 is: 4,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.81 : 6,821.18 = 2,956.15 : x
  2. Step 2: Convert to fraction form
    4,942.81/6,821.18 = 2,956.15/x
  3. Step 3: Cross multiply
    4,942.81x = 6,821.18 × 2,956.15
  4. Step 4: Simplify right side
    4,942.81x = 20,164,431.26
  5. Step 5: Solve for x
    x = 20,164,431.26/4,942.81
  6. Step 6: Final answer
    x = 4,079.55

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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.