Home / 5,137.31-7,705.36-1,439.83

Finding the Fourth Proportional to 5,137.31, 7,705.36 and 1,439.83

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Solution

The fourth proportional to 5,137.31, 7,705.36 and 1,439.83 is: 2,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.31 : 7,705.36 = 1,439.83 : x
  2. Step 2: Convert to fraction form
    5,137.31/7,705.36 = 1,439.83/x
  3. Step 3: Cross multiply
    5,137.31x = 7,705.36 × 1,439.83
  4. Step 4: Simplify right side
    5,137.31x = 11,094,408.49
  5. Step 5: Solve for x
    x = 11,094,408.49/5,137.31
  6. Step 6: Final answer
    x = 2,159.58

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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.