Home / 2,163.15-2,985.53-1,266.98

Finding the Fourth Proportional to 2,163.15, 2,985.53 and 1,266.98

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Solution

The fourth proportional to 2,163.15, 2,985.53 and 1,266.98 is: 1,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.15 : 2,985.53 = 1,266.98 : x
  2. Step 2: Convert to fraction form
    2,163.15/2,985.53 = 1,266.98/x
  3. Step 3: Cross multiply
    2,163.15x = 2,985.53 × 1,266.98
  4. Step 4: Simplify right side
    2,163.15x = 3,782,585.54
  5. Step 5: Solve for x
    x = 3,782,585.54/2,163.15
  6. Step 6: Final answer
    x = 1,748.65

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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.