Home / 3,788.16-5,681.40-1,190.49

Finding the Fourth Proportional to 3,788.16, 5,681.40 and 1,190.49

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Solution

The fourth proportional to 3,788.16, 5,681.40 and 1,190.49 is: 1,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.16 : 5,681.40 = 1,190.49 : x
  2. Step 2: Convert to fraction form
    3,788.16/5,681.40 = 1,190.49/x
  3. Step 3: Cross multiply
    3,788.16x = 5,681.40 × 1,190.49
  4. Step 4: Simplify right side
    3,788.16x = 6,763,649.89
  5. Step 5: Solve for x
    x = 6,763,649.89/3,788.16
  6. Step 6: Final answer
    x = 1,785.47

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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.