Home / 1,329.44-1,994.40-1,088.12

Finding the Fourth Proportional to 1,329.44, 1,994.40 and 1,088.12

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Solution

The fourth proportional to 1,329.44, 1,994.40 and 1,088.12 is: 1,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.44 : 1,994.40 = 1,088.12 : x
  2. Step 2: Convert to fraction form
    1,329.44/1,994.40 = 1,088.12/x
  3. Step 3: Cross multiply
    1,329.44x = 1,994.40 × 1,088.12
  4. Step 4: Simplify right side
    1,329.44x = 2,170,146.53
  5. Step 5: Solve for x
    x = 2,170,146.53/1,329.44
  6. Step 6: Final answer
    x = 1,632.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.