Home / 4,874.40-6,724.89-3,105.63

Finding the Fourth Proportional to 4,874.40, 6,724.89 and 3,105.63

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Solution

The fourth proportional to 4,874.40, 6,724.89 and 3,105.63 is: 4,284.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.40 : 6,724.89 = 3,105.63 : x
  2. Step 2: Convert to fraction form
    4,874.40/6,724.89 = 3,105.63/x
  3. Step 3: Cross multiply
    4,874.40x = 6,724.89 × 3,105.63
  4. Step 4: Simplify right side
    4,874.40x = 20,885,020.13
  5. Step 5: Solve for x
    x = 20,885,020.13/4,874.40
  6. Step 6: Final answer
    x = 4,284.63

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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.