Home / 1,499.44-2,069.38-1,278.32

Finding the Fourth Proportional to 1,499.44, 2,069.38 and 1,278.32

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Solution

The fourth proportional to 1,499.44, 2,069.38 and 1,278.32 is: 1,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.44 : 2,069.38 = 1,278.32 : x
  2. Step 2: Convert to fraction form
    1,499.44/2,069.38 = 1,278.32/x
  3. Step 3: Cross multiply
    1,499.44x = 2,069.38 × 1,278.32
  4. Step 4: Simplify right side
    1,499.44x = 2,645,329.84
  5. Step 5: Solve for x
    x = 2,645,329.84/1,499.44
  6. Step 6: Final answer
    x = 1,764.21

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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.