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Finding the Fourth Proportional to 3,655.71, 5,482.99 and 1,190.51

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Solution

The fourth proportional to 3,655.71, 5,482.99 and 1,190.51 is: 1,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.71 : 5,482.99 = 1,190.51 : x
  2. Step 2: Convert to fraction form
    3,655.71/5,482.99 = 1,190.51/x
  3. Step 3: Cross multiply
    3,655.71x = 5,482.99 × 1,190.51
  4. Step 4: Simplify right side
    3,655.71x = 6,527,556.77
  5. Step 5: Solve for x
    x = 6,527,556.77/3,655.71
  6. Step 6: Final answer
    x = 1,785.58

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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.