Home / 3,477.71-5,216.43-1,286.39

Finding the Fourth Proportional to 3,477.71, 5,216.43 and 1,286.39

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Solution

The fourth proportional to 3,477.71, 5,216.43 and 1,286.39 is: 1,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.71 : 5,216.43 = 1,286.39 : x
  2. Step 2: Convert to fraction form
    3,477.71/5,216.43 = 1,286.39/x
  3. Step 3: Cross multiply
    3,477.71x = 5,216.43 × 1,286.39
  4. Step 4: Simplify right side
    3,477.71x = 6,710,363.39
  5. Step 5: Solve for x
    x = 6,710,363.39/3,477.71
  6. Step 6: Final answer
    x = 1,929.54

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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.