Home / 2,277.90-3,145.37-1,439.96

Finding the Fourth Proportional to 2,277.90, 3,145.37 and 1,439.96

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Solution

The fourth proportional to 2,277.90, 3,145.37 and 1,439.96 is: 1,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.90 : 3,145.37 = 1,439.96 : x
  2. Step 2: Convert to fraction form
    2,277.90/3,145.37 = 1,439.96/x
  3. Step 3: Cross multiply
    2,277.90x = 3,145.37 × 1,439.96
  4. Step 4: Simplify right side
    2,277.90x = 4,529,184.06
  5. Step 5: Solve for x
    x = 4,529,184.06/2,277.90
  6. Step 6: Final answer
    x = 1,988.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.