Home / 3,386.71-5,077.90-1,628.21

Finding the Fourth Proportional to 3,386.71, 5,077.90 and 1,628.21

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Solution

The fourth proportional to 3,386.71, 5,077.90 and 1,628.21 is: 2,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.71 : 5,077.90 = 1,628.21 : x
  2. Step 2: Convert to fraction form
    3,386.71/5,077.90 = 1,628.21/x
  3. Step 3: Cross multiply
    3,386.71x = 5,077.90 × 1,628.21
  4. Step 4: Simplify right side
    3,386.71x = 8,267,891.94
  5. Step 5: Solve for x
    x = 8,267,891.94/3,386.71
  6. Step 6: Final answer
    x = 2,441.28

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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.