Home / 7,837.32-11,756.44-2,840.78

Finding the Fourth Proportional to 7,837.32, 11,756.44 and 2,840.78

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Solution

The fourth proportional to 7,837.32, 11,756.44 and 2,840.78 is: 4,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.32 : 11,756.44 = 2,840.78 : x
  2. Step 2: Convert to fraction form
    7,837.32/11,756.44 = 2,840.78/x
  3. Step 3: Cross multiply
    7,837.32x = 11,756.44 × 2,840.78
  4. Step 4: Simplify right side
    7,837.32x = 33,397,459.62
  5. Step 5: Solve for x
    x = 33,397,459.62/7,837.32
  6. Step 6: Final answer
    x = 4,261.34

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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.