Home / 2,630.92-3,631.44-1,635.70

Finding the Fourth Proportional to 2,630.92, 3,631.44 and 1,635.70

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Solution

The fourth proportional to 2,630.92, 3,631.44 and 1,635.70 is: 2,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.92 : 3,631.44 = 1,635.70 : x
  2. Step 2: Convert to fraction form
    2,630.92/3,631.44 = 1,635.70/x
  3. Step 3: Cross multiply
    2,630.92x = 3,631.44 × 1,635.70
  4. Step 4: Simplify right side
    2,630.92x = 5,939,946.41
  5. Step 5: Solve for x
    x = 5,939,946.41/2,630.92
  6. Step 6: Final answer
    x = 2,257.74

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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.