Home / 1,941.65-2,909.85-1,392.63

Finding the Fourth Proportional to 1,941.65, 2,909.85 and 1,392.63

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Solution

The fourth proportional to 1,941.65, 2,909.85 and 1,392.63 is: 2,087.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.65 : 2,909.85 = 1,392.63 : x
  2. Step 2: Convert to fraction form
    1,941.65/2,909.85 = 1,392.63/x
  3. Step 3: Cross multiply
    1,941.65x = 2,909.85 × 1,392.63
  4. Step 4: Simplify right side
    1,941.65x = 4,052,344.41
  5. Step 5: Solve for x
    x = 4,052,344.41/1,941.65
  6. Step 6: Final answer
    x = 2,087.06

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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.