Home / 7,857.29-11,783.44-2,591.32

Finding the Fourth Proportional to 7,857.29, 11,783.44 and 2,591.32

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Solution

The fourth proportional to 7,857.29, 11,783.44 and 2,591.32 is: 3,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.29 : 11,783.44 = 2,591.32 : x
  2. Step 2: Convert to fraction form
    7,857.29/11,783.44 = 2,591.32/x
  3. Step 3: Cross multiply
    7,857.29x = 11,783.44 × 2,591.32
  4. Step 4: Simplify right side
    7,857.29x = 30,534,650.78
  5. Step 5: Solve for x
    x = 30,534,650.78/7,857.29
  6. Step 6: Final answer
    x = 3,886.16

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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.