Home / 3,655.90-5,041.47-2,163.88

Finding the Fourth Proportional to 3,655.90, 5,041.47 and 2,163.88

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Solution

The fourth proportional to 3,655.90, 5,041.47 and 2,163.88 is: 2,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.90 : 5,041.47 = 2,163.88 : x
  2. Step 2: Convert to fraction form
    3,655.90/5,041.47 = 2,163.88/x
  3. Step 3: Cross multiply
    3,655.90x = 5,041.47 × 2,163.88
  4. Step 4: Simplify right side
    3,655.90x = 10,909,136.10
  5. Step 5: Solve for x
    x = 10,909,136.10/3,655.90
  6. Step 6: Final answer
    x = 2,983.98

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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.