Home / 5,137.21-7,705.82-1,439.99

Finding the Fourth Proportional to 5,137.21, 7,705.82 and 1,439.99

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Solution

The fourth proportional to 5,137.21, 7,705.82 and 1,439.99 is: 2,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.21 : 7,705.82 = 1,439.99 : x
  2. Step 2: Convert to fraction form
    5,137.21/7,705.82 = 1,439.99/x
  3. Step 3: Cross multiply
    5,137.21x = 7,705.82 × 1,439.99
  4. Step 4: Simplify right side
    5,137.21x = 11,096,303.74
  5. Step 5: Solve for x
    x = 11,096,303.74/5,137.21
  6. Step 6: Final answer
    x = 2,159.99

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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.