Home / 2,651.09-3,658.54-1,439.77

Finding the Fourth Proportional to 2,651.09, 3,658.54 and 1,439.77

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Solution

The fourth proportional to 2,651.09, 3,658.54 and 1,439.77 is: 1,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.09 : 3,658.54 = 1,439.77 : x
  2. Step 2: Convert to fraction form
    2,651.09/3,658.54 = 1,439.77/x
  3. Step 3: Cross multiply
    2,651.09x = 3,658.54 × 1,439.77
  4. Step 4: Simplify right side
    2,651.09x = 5,267,446.99
  5. Step 5: Solve for x
    x = 5,267,446.99/2,651.09
  6. Step 6: Final answer
    x = 1,986.90

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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.