Home / 2,135.50-2,949.42-1,435.66

Finding the Fourth Proportional to 2,135.50, 2,949.42 and 1,435.66

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Solution

The fourth proportional to 2,135.50, 2,949.42 and 1,435.66 is: 1,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.50 : 2,949.42 = 1,435.66 : x
  2. Step 2: Convert to fraction form
    2,135.50/2,949.42 = 1,435.66/x
  3. Step 3: Cross multiply
    2,135.50x = 2,949.42 × 1,435.66
  4. Step 4: Simplify right side
    2,135.50x = 4,234,364.32
  5. Step 5: Solve for x
    x = 4,234,364.32/2,135.50
  6. Step 6: Final answer
    x = 1,982.84

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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.