Home / 3,918.54-5,877.51-1,145.24

Finding the Fourth Proportional to 3,918.54, 5,877.51 and 1,145.24

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Solution

The fourth proportional to 3,918.54, 5,877.51 and 1,145.24 is: 1,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.54 : 5,877.51 = 1,145.24 : x
  2. Step 2: Convert to fraction form
    3,918.54/5,877.51 = 1,145.24/x
  3. Step 3: Cross multiply
    3,918.54x = 5,877.51 × 1,145.24
  4. Step 4: Simplify right side
    3,918.54x = 6,731,159.55
  5. Step 5: Solve for x
    x = 6,731,159.55/3,918.54
  6. Step 6: Final answer
    x = 1,717.77

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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.