Home / 3,720.61-5,133.40-2,932.21

Finding the Fourth Proportional to 3,720.61, 5,133.40 and 2,932.21

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Solution

The fourth proportional to 3,720.61, 5,133.40 and 2,932.21 is: 4,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.61 : 5,133.40 = 2,932.21 : x
  2. Step 2: Convert to fraction form
    3,720.61/5,133.40 = 2,932.21/x
  3. Step 3: Cross multiply
    3,720.61x = 5,133.40 × 2,932.21
  4. Step 4: Simplify right side
    3,720.61x = 15,052,206.81
  5. Step 5: Solve for x
    x = 15,052,206.81/3,720.61
  6. Step 6: Final answer
    x = 4,045.63

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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.