Home / 1,943.19-2,681.91-1,157.69

Finding the Fourth Proportional to 1,943.19, 2,681.91 and 1,157.69

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Solution

The fourth proportional to 1,943.19, 2,681.91 and 1,157.69 is: 1,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.19 : 2,681.91 = 1,157.69 : x
  2. Step 2: Convert to fraction form
    1,943.19/2,681.91 = 1,157.69/x
  3. Step 3: Cross multiply
    1,943.19x = 2,681.91 × 1,157.69
  4. Step 4: Simplify right side
    1,943.19x = 3,104,827.09
  5. Step 5: Solve for x
    x = 3,104,827.09/1,943.19
  6. Step 6: Final answer
    x = 1,597.80

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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.