Home / 2,558.53-3,530.85-1,439.41

Finding the Fourth Proportional to 2,558.53, 3,530.85 and 1,439.41

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Solution

The fourth proportional to 2,558.53, 3,530.85 and 1,439.41 is: 1,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.53 : 3,530.85 = 1,439.41 : x
  2. Step 2: Convert to fraction form
    2,558.53/3,530.85 = 1,439.41/x
  3. Step 3: Cross multiply
    2,558.53x = 3,530.85 × 1,439.41
  4. Step 4: Simplify right side
    2,558.53x = 5,082,340.80
  5. Step 5: Solve for x
    x = 5,082,340.80/2,558.53
  6. Step 6: Final answer
    x = 1,986.43

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1.5x scale

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.