Home / 4,615.38-6,366.78-3,123.81

Finding the Fourth Proportional to 4,615.38, 6,366.78 and 3,123.81

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Solution

The fourth proportional to 4,615.38, 6,366.78 and 3,123.81 is: 4,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.38 : 6,366.78 = 3,123.81 : x
  2. Step 2: Convert to fraction form
    4,615.38/6,366.78 = 3,123.81/x
  3. Step 3: Cross multiply
    4,615.38x = 6,366.78 × 3,123.81
  4. Step 4: Simplify right side
    4,615.38x = 19,888,611.03
  5. Step 5: Solve for x
    x = 19,888,611.03/4,615.38
  6. Step 6: Final answer
    x = 4,309.20

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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.