Home / 2,630.62-3,630.33-1,435.68

Finding the Fourth Proportional to 2,630.62, 3,630.33 and 1,435.68

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Solution

The fourth proportional to 2,630.62, 3,630.33 and 1,435.68 is: 1,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.62 : 3,630.33 = 1,435.68 : x
  2. Step 2: Convert to fraction form
    2,630.62/3,630.33 = 1,435.68/x
  3. Step 3: Cross multiply
    2,630.62x = 3,630.33 × 1,435.68
  4. Step 4: Simplify right side
    2,630.62x = 5,211,994.90
  5. Step 5: Solve for x
    x = 5,211,994.90/2,630.62
  6. Step 6: Final answer
    x = 1,981.28

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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.