Home / 3,943.50-5,914.62-1,312.17

Finding the Fourth Proportional to 3,943.50, 5,914.62 and 1,312.17

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Solution

The fourth proportional to 3,943.50, 5,914.62 and 1,312.17 is: 1,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.50 : 5,914.62 = 1,312.17 : x
  2. Step 2: Convert to fraction form
    3,943.50/5,914.62 = 1,312.17/x
  3. Step 3: Cross multiply
    3,943.50x = 5,914.62 × 1,312.17
  4. Step 4: Simplify right side
    3,943.50x = 7,760,986.93
  5. Step 5: Solve for x
    x = 7,760,986.93/3,943.50
  6. Step 6: Final answer
    x = 1,968.05

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1.5x scale

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.