Home / 2,705.93-4,057.44-1,389.14

Finding the Fourth Proportional to 2,705.93, 4,057.44 and 1,389.14

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Solution

The fourth proportional to 2,705.93, 4,057.44 and 1,389.14 is: 2,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.93 : 4,057.44 = 1,389.14 : x
  2. Step 2: Convert to fraction form
    2,705.93/4,057.44 = 1,389.14/x
  3. Step 3: Cross multiply
    2,705.93x = 4,057.44 × 1,389.14
  4. Step 4: Simplify right side
    2,705.93x = 5,636,352.20
  5. Step 5: Solve for x
    x = 5,636,352.20/2,705.93
  6. Step 6: Final answer
    x = 2,082.96

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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.