Home / 1,982.07-2,733.75-1,864.35

Finding the Fourth Proportional to 1,982.07, 2,733.75 and 1,864.35

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Solution

The fourth proportional to 1,982.07, 2,733.75 and 1,864.35 is: 2,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.07 : 2,733.75 = 1,864.35 : x
  2. Step 2: Convert to fraction form
    1,982.07/2,733.75 = 1,864.35/x
  3. Step 3: Cross multiply
    1,982.07x = 2,733.75 × 1,864.35
  4. Step 4: Simplify right side
    1,982.07x = 5,096,666.81
  5. Step 5: Solve for x
    x = 5,096,666.81/1,982.07
  6. Step 6: Final answer
    x = 2,571.39

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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.