Home / 4,630.56-6,388.59-2,639.70

Finding the Fourth Proportional to 4,630.56, 6,388.59 and 2,639.70

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Solution

The fourth proportional to 4,630.56, 6,388.59 and 2,639.70 is: 3,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.56 : 6,388.59 = 2,639.70 : x
  2. Step 2: Convert to fraction form
    4,630.56/6,388.59 = 2,639.70/x
  3. Step 3: Cross multiply
    4,630.56x = 6,388.59 × 2,639.70
  4. Step 4: Simplify right side
    4,630.56x = 16,863,961.02
  5. Step 5: Solve for x
    x = 16,863,961.02/4,630.56
  6. Step 6: Final answer
    x = 3,641.88

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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.