Home / 2,840.32-4,261.60-892.80

Finding the Fourth Proportional to 2,840.32, 4,261.60 and 892.80

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Solution

The fourth proportional to 2,840.32, 4,261.60 and 892.80 is: 1,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.32 : 4,261.60 = 892.80 : x
  2. Step 2: Convert to fraction form
    2,840.32/4,261.60 = 892.80/x
  3. Step 3: Cross multiply
    2,840.32x = 4,261.60 × 892.80
  4. Step 4: Simplify right side
    2,840.32x = 3,804,756.48
  5. Step 5: Solve for x
    x = 3,804,756.48/2,840.32
  6. Step 6: Final answer
    x = 1,339.55

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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.