Home / 4,989.63-6,885.46-2,863.69

Finding the Fourth Proportional to 4,989.63, 6,885.46 and 2,863.69

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Solution

The fourth proportional to 4,989.63, 6,885.46 and 2,863.69 is: 3,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.63 : 6,885.46 = 2,863.69 : x
  2. Step 2: Convert to fraction form
    4,989.63/6,885.46 = 2,863.69/x
  3. Step 3: Cross multiply
    4,989.63x = 6,885.46 × 2,863.69
  4. Step 4: Simplify right side
    4,989.63x = 19,717,809.31
  5. Step 5: Solve for x
    x = 19,717,809.31/4,989.63
  6. Step 6: Final answer
    x = 3,951.75

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Double scale
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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.