Home / 3,440.90-4,739.66-2,909.18

Finding the Fourth Proportional to 3,440.90, 4,739.66 and 2,909.18

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Solution

The fourth proportional to 3,440.90, 4,739.66 and 2,909.18 is: 4,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.90 : 4,739.66 = 2,909.18 : x
  2. Step 2: Convert to fraction form
    3,440.90/4,739.66 = 2,909.18/x
  3. Step 3: Cross multiply
    3,440.90x = 4,739.66 × 2,909.18
  4. Step 4: Simplify right side
    3,440.90x = 13,788,524.08
  5. Step 5: Solve for x
    x = 13,788,524.08/3,440.90
  6. Step 6: Final answer
    x = 4,007.24

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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.