Home / 2,114.79-2,918.38-1,170.49

Finding the Fourth Proportional to 2,114.79, 2,918.38 and 1,170.49

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Solution

The fourth proportional to 2,114.79, 2,918.38 and 1,170.49 is: 1,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.79 : 2,918.38 = 1,170.49 : x
  2. Step 2: Convert to fraction form
    2,114.79/2,918.38 = 1,170.49/x
  3. Step 3: Cross multiply
    2,114.79x = 2,918.38 × 1,170.49
  4. Step 4: Simplify right side
    2,114.79x = 3,415,934.61
  5. Step 5: Solve for x
    x = 3,415,934.61/2,114.79
  6. Step 6: Final answer
    x = 1,615.26

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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.