Home / 3,943.85-5,918.71-1,864.49

Finding the Fourth Proportional to 3,943.85, 5,918.71 and 1,864.49

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Solution

The fourth proportional to 3,943.85, 5,918.71 and 1,864.49 is: 2,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.85 : 5,918.71 = 1,864.49 : x
  2. Step 2: Convert to fraction form
    3,943.85/5,918.71 = 1,864.49/x
  3. Step 3: Cross multiply
    3,943.85x = 5,918.71 × 1,864.49
  4. Step 4: Simplify right side
    3,943.85x = 11,035,366.29
  5. Step 5: Solve for x
    x = 11,035,366.29/3,943.85
  6. Step 6: Final answer
    x = 2,798.12

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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.