Home / 5,806.81-8,013.56-3,154.38

Finding the Fourth Proportional to 5,806.81, 8,013.56 and 3,154.38

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Solution

The fourth proportional to 5,806.81, 8,013.56 and 3,154.38 is: 4,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806.81 : 8,013.56 = 3,154.38 : x
  2. Step 2: Convert to fraction form
    5,806.81/8,013.56 = 3,154.38/x
  3. Step 3: Cross multiply
    5,806.81x = 8,013.56 × 3,154.38
  4. Step 4: Simplify right side
    5,806.81x = 25,277,813.39
  5. Step 5: Solve for x
    x = 25,277,813.39/5,806.81
  6. Step 6: Final answer
    x = 4,353.13

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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.