Home / 2,840.31-4,254.31-1,376.39

Finding the Fourth Proportional to 2,840.31, 4,254.31 and 1,376.39

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Solution

The fourth proportional to 2,840.31, 4,254.31 and 1,376.39 is: 2,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.31 : 4,254.31 = 1,376.39 : x
  2. Step 2: Convert to fraction form
    2,840.31/4,254.31 = 1,376.39/x
  3. Step 3: Cross multiply
    2,840.31x = 4,254.31 × 1,376.39
  4. Step 4: Simplify right side
    2,840.31x = 5,855,596.94
  5. Step 5: Solve for x
    x = 5,855,596.94/2,840.31
  6. Step 6: Final answer
    x = 2,061.60

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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.