Home / 3,205.28-4,812.96-3,117.80

Finding the Fourth Proportional to 3,205.28, 4,812.96 and 3,117.80

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Solution

The fourth proportional to 3,205.28, 4,812.96 and 3,117.80 is: 4,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.28 : 4,812.96 = 3,117.80 : x
  2. Step 2: Convert to fraction form
    3,205.28/4,812.96 = 3,117.80/x
  3. Step 3: Cross multiply
    3,205.28x = 4,812.96 × 3,117.80
  4. Step 4: Simplify right side
    3,205.28x = 15,005,846.69
  5. Step 5: Solve for x
    x = 15,005,846.69/3,205.28
  6. Step 6: Final answer
    x = 4,681.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.