Home / 4,806.25-7,171.64-4,315.39

Finding the Fourth Proportional to 4,806.25, 7,171.64 and 4,315.39

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Solution

The fourth proportional to 4,806.25, 7,171.64 and 4,315.39 is: 6,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,806.25 : 7,171.64 = 4,315.39 : x
  2. Step 2: Convert to fraction form
    4,806.25/7,171.64 = 4,315.39/x
  3. Step 3: Cross multiply
    4,806.25x = 7,171.64 × 4,315.39
  4. Step 4: Simplify right side
    4,806.25x = 30,948,423.54
  5. Step 5: Solve for x
    x = 30,948,423.54/4,806.25
  6. Step 6: Final answer
    x = 6,439.20

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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.