Home / 2,558.22-3,530.07-1,439.30

Finding the Fourth Proportional to 2,558.22, 3,530.07 and 1,439.30

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Solution

The fourth proportional to 2,558.22, 3,530.07 and 1,439.30 is: 1,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.22 : 3,530.07 = 1,439.30 : x
  2. Step 2: Convert to fraction form
    2,558.22/3,530.07 = 1,439.30/x
  3. Step 3: Cross multiply
    2,558.22x = 3,530.07 × 1,439.30
  4. Step 4: Simplify right side
    2,558.22x = 5,080,812.10
  5. Step 5: Solve for x
    x = 5,080,812.10/2,558.22
  6. Step 6: Final answer
    x = 1,986.07

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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.