Home / 3,403.71-4,695.98-1,911.33

Finding the Fourth Proportional to 3,403.71, 4,695.98 and 1,911.33

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Solution

The fourth proportional to 3,403.71, 4,695.98 and 1,911.33 is: 2,636.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.71 : 4,695.98 = 1,911.33 : x
  2. Step 2: Convert to fraction form
    3,403.71/4,695.98 = 1,911.33/x
  3. Step 3: Cross multiply
    3,403.71x = 4,695.98 × 1,911.33
  4. Step 4: Simplify right side
    3,403.71x = 8,975,557.90
  5. Step 5: Solve for x
    x = 8,975,557.90/3,403.71
  6. Step 6: Final answer
    x = 2,636.99

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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.