Home / 2,539.16-3,809.14-1,078.32

Finding the Fourth Proportional to 2,539.16, 3,809.14 and 1,078.32

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Solution

The fourth proportional to 2,539.16, 3,809.14 and 1,078.32 is: 1,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.16 : 3,809.14 = 1,078.32 : x
  2. Step 2: Convert to fraction form
    2,539.16/3,809.14 = 1,078.32/x
  3. Step 3: Cross multiply
    2,539.16x = 3,809.14 × 1,078.32
  4. Step 4: Simplify right side
    2,539.16x = 4,107,471.84
  5. Step 5: Solve for x
    x = 4,107,471.84/2,539.16
  6. Step 6: Final answer
    x = 1,617.65

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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.