Home / 1,943.86-2,681.01-1,245.30

Finding the Fourth Proportional to 1,943.86, 2,681.01 and 1,245.30

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Solution

The fourth proportional to 1,943.86, 2,681.01 and 1,245.30 is: 1,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.86 : 2,681.01 = 1,245.30 : x
  2. Step 2: Convert to fraction form
    1,943.86/2,681.01 = 1,245.30/x
  3. Step 3: Cross multiply
    1,943.86x = 2,681.01 × 1,245.30
  4. Step 4: Simplify right side
    1,943.86x = 3,338,661.75
  5. Step 5: Solve for x
    x = 3,338,661.75/1,943.86
  6. Step 6: Final answer
    x = 1,717.54

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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.