Home / 3,019.50-4,165.49-2,135.79

Finding the Fourth Proportional to 3,019.50, 4,165.49 and 2,135.79

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Solution

The fourth proportional to 3,019.50, 4,165.49 and 2,135.79 is: 2,946.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.50 : 4,165.49 = 2,135.79 : x
  2. Step 2: Convert to fraction form
    3,019.50/4,165.49 = 2,135.79/x
  3. Step 3: Cross multiply
    3,019.50x = 4,165.49 × 2,135.79
  4. Step 4: Simplify right side
    3,019.50x = 8,896,601.21
  5. Step 5: Solve for x
    x = 8,896,601.21/3,019.50
  6. Step 6: Final answer
    x = 2,946.38

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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.