Home / 6,135.40-9,208.86-3,215.80

Finding the Fourth Proportional to 6,135.40, 9,208.86 and 3,215.80

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Solution

The fourth proportional to 6,135.40, 9,208.86 and 3,215.80 is: 4,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.40 : 9,208.86 = 3,215.80 : x
  2. Step 2: Convert to fraction form
    6,135.40/9,208.86 = 3,215.80/x
  3. Step 3: Cross multiply
    6,135.40x = 9,208.86 × 3,215.80
  4. Step 4: Simplify right side
    6,135.40x = 29,613,851.99
  5. Step 5: Solve for x
    x = 29,613,851.99/6,135.40
  6. Step 6: Final answer
    x = 4,826.72

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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.