Home / 3,401.57-4,693.91-1,909.71

Finding the Fourth Proportional to 3,401.57, 4,693.91 and 1,909.71

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Solution

The fourth proportional to 3,401.57, 4,693.91 and 1,909.71 is: 2,635.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.57 : 4,693.91 = 1,909.71 : x
  2. Step 2: Convert to fraction form
    3,401.57/4,693.91 = 1,909.71/x
  3. Step 3: Cross multiply
    3,401.57x = 4,693.91 × 1,909.71
  4. Step 4: Simplify right side
    3,401.57x = 8,963,997.32
  5. Step 5: Solve for x
    x = 8,963,997.32/3,401.57
  6. Step 6: Final answer
    x = 2,635.26

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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.