Home / 3,429.39-4,732.45-1,916.99

Finding the Fourth Proportional to 3,429.39, 4,732.45 and 1,916.99

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Solution

The fourth proportional to 3,429.39, 4,732.45 and 1,916.99 is: 2,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.39 : 4,732.45 = 1,916.99 : x
  2. Step 2: Convert to fraction form
    3,429.39/4,732.45 = 1,916.99/x
  3. Step 3: Cross multiply
    3,429.39x = 4,732.45 × 1,916.99
  4. Step 4: Simplify right side
    3,429.39x = 9,072,067.32
  5. Step 5: Solve for x
    x = 9,072,067.32/3,429.39
  6. Step 6: Final answer
    x = 2,645.39

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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.