Home / 6,128.78-8,457.66-3,334.28

Finding the Fourth Proportional to 6,128.78, 8,457.66 and 3,334.28

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Solution

The fourth proportional to 6,128.78, 8,457.66 and 3,334.28 is: 4,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.78 : 8,457.66 = 3,334.28 : x
  2. Step 2: Convert to fraction form
    6,128.78/8,457.66 = 3,334.28/x
  3. Step 3: Cross multiply
    6,128.78x = 8,457.66 × 3,334.28
  4. Step 4: Simplify right side
    6,128.78x = 28,200,206.58
  5. Step 5: Solve for x
    x = 28,200,206.58/6,128.78
  6. Step 6: Final answer
    x = 4,601.28

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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.