Home / 3,036.49-4,190.96-1,916.66

Finding the Fourth Proportional to 3,036.49, 4,190.96 and 1,916.66

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Solution

The fourth proportional to 3,036.49, 4,190.96 and 1,916.66 is: 2,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.49 : 4,190.96 = 1,916.66 : x
  2. Step 2: Convert to fraction form
    3,036.49/4,190.96 = 1,916.66/x
  3. Step 3: Cross multiply
    3,036.49x = 4,190.96 × 1,916.66
  4. Step 4: Simplify right side
    3,036.49x = 8,032,660.66
  5. Step 5: Solve for x
    x = 8,032,660.66/3,036.49
  6. Step 6: Final answer
    x = 2,645.38

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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.