Home / 3,401.13-4,693.65-1,909.16

Finding the Fourth Proportional to 3,401.13, 4,693.65 and 1,909.16

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Solution

The fourth proportional to 3,401.13, 4,693.65 and 1,909.16 is: 2,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.13 : 4,693.65 = 1,909.16 : x
  2. Step 2: Convert to fraction form
    3,401.13/4,693.65 = 1,909.16/x
  3. Step 3: Cross multiply
    3,401.13x = 4,693.65 × 1,909.16
  4. Step 4: Simplify right side
    3,401.13x = 8,960,919.29
  5. Step 5: Solve for x
    x = 8,960,919.29/3,401.13
  6. Step 6: Final answer
    x = 2,634.69

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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.