Home / 2,558.30-3,529.08-1,509.75

Finding the Fourth Proportional to 2,558.30, 3,529.08 and 1,509.75

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Solution

The fourth proportional to 2,558.30, 3,529.08 and 1,509.75 is: 2,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.30 : 3,529.08 = 1,509.75 : x
  2. Step 2: Convert to fraction form
    2,558.30/3,529.08 = 1,509.75/x
  3. Step 3: Cross multiply
    2,558.30x = 3,529.08 × 1,509.75
  4. Step 4: Simplify right side
    2,558.30x = 5,328,028.53
  5. Step 5: Solve for x
    x = 5,328,028.53/2,558.30
  6. Step 6: Final answer
    x = 2,082.65

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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.