Home / 3,114.86-4,299.08-1,788.89

Finding the Fourth Proportional to 3,114.86, 4,299.08 and 1,788.89

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Solution

The fourth proportional to 3,114.86, 4,299.08 and 1,788.89 is: 2,468.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.86 : 4,299.08 = 1,788.89 : x
  2. Step 2: Convert to fraction form
    3,114.86/4,299.08 = 1,788.89/x
  3. Step 3: Cross multiply
    3,114.86x = 4,299.08 × 1,788.89
  4. Step 4: Simplify right side
    3,114.86x = 7,690,550.78
  5. Step 5: Solve for x
    x = 7,690,550.78/3,114.86
  6. Step 6: Final answer
    x = 2,468.99

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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.