Home / 3,119.43-4,677.78-1,658.25

Finding the Fourth Proportional to 3,119.43, 4,677.78 and 1,658.25

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Solution

The fourth proportional to 3,119.43, 4,677.78 and 1,658.25 is: 2,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.43 : 4,677.78 = 1,658.25 : x
  2. Step 2: Convert to fraction form
    3,119.43/4,677.78 = 1,658.25/x
  3. Step 3: Cross multiply
    3,119.43x = 4,677.78 × 1,658.25
  4. Step 4: Simplify right side
    3,119.43x = 7,756,928.69
  5. Step 5: Solve for x
    x = 7,756,928.69/3,119.43
  6. Step 6: Final answer
    x = 2,486.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.