Home / 2,631.16-3,630.90-1,636.60

Finding the Fourth Proportional to 2,631.16, 3,630.90 and 1,636.60

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Solution

The fourth proportional to 2,631.16, 3,630.90 and 1,636.60 is: 2,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.16 : 3,630.90 = 1,636.60 : x
  2. Step 2: Convert to fraction form
    2,631.16/3,630.90 = 1,636.60/x
  3. Step 3: Cross multiply
    2,631.16x = 3,630.90 × 1,636.60
  4. Step 4: Simplify right side
    2,631.16x = 5,942,330.94
  5. Step 5: Solve for x
    x = 5,942,330.94/2,631.16
  6. Step 6: Final answer
    x = 2,258.45

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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.