Home / 4,899.60-6,762.47-3,105.99

Finding the Fourth Proportional to 4,899.60, 6,762.47 and 3,105.99

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Solution

The fourth proportional to 4,899.60, 6,762.47 and 3,105.99 is: 4,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.60 : 6,762.47 = 3,105.99 : x
  2. Step 2: Convert to fraction form
    4,899.60/6,762.47 = 3,105.99/x
  3. Step 3: Cross multiply
    4,899.60x = 6,762.47 × 3,105.99
  4. Step 4: Simplify right side
    4,899.60x = 21,004,148.67
  5. Step 5: Solve for x
    x = 21,004,148.67/4,899.60
  6. Step 6: Final answer
    x = 4,286.91

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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.