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Finding the Fourth Proportional to 2,630.64, 3,630.16 and 1,451.68

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Solution

The fourth proportional to 2,630.64, 3,630.16 and 1,451.68 is: 2,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.64 : 3,630.16 = 1,451.68 : x
  2. Step 2: Convert to fraction form
    2,630.64/3,630.16 = 1,451.68/x
  3. Step 3: Cross multiply
    2,630.64x = 3,630.16 × 1,451.68
  4. Step 4: Simplify right side
    2,630.64x = 5,269,830.67
  5. Step 5: Solve for x
    x = 5,269,830.67/2,630.64
  6. Step 6: Final answer
    x = 2,003.25

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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.