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Finding the Fourth Proportional to 3,719.67, 5,588.21 and 3,509.51

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Solution

The fourth proportional to 3,719.67, 5,588.21 and 3,509.51 is: 5,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.67 : 5,588.21 = 3,509.51 : x
  2. Step 2: Convert to fraction form
    3,719.67/5,588.21 = 3,509.51/x
  3. Step 3: Cross multiply
    3,719.67x = 5,588.21 × 3,509.51
  4. Step 4: Simplify right side
    3,719.67x = 19,611,833.39
  5. Step 5: Solve for x
    x = 19,611,833.39/3,719.67
  6. Step 6: Final answer
    x = 5,272.47

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1.5x scale

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.