Home / 6,813.20-10,217.40-2,430.80

Finding the Fourth Proportional to 6,813.20, 10,217.40 and 2,430.80

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Solution

The fourth proportional to 6,813.20, 10,217.40 and 2,430.80 is: 3,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.20 : 10,217.40 = 2,430.80 : x
  2. Step 2: Convert to fraction form
    6,813.20/10,217.40 = 2,430.80/x
  3. Step 3: Cross multiply
    6,813.20x = 10,217.40 × 2,430.80
  4. Step 4: Simplify right side
    6,813.20x = 24,836,455.92
  5. Step 5: Solve for x
    x = 24,836,455.92/6,813.20
  6. Step 6: Final answer
    x = 3,645.34

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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.