Home / 2,163.44-2,985.72-1,663.76

Finding the Fourth Proportional to 2,163.44, 2,985.72 and 1,663.76

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Solution

The fourth proportional to 2,163.44, 2,985.72 and 1,663.76 is: 2,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.44 : 2,985.72 = 1,663.76 : x
  2. Step 2: Convert to fraction form
    2,163.44/2,985.72 = 1,663.76/x
  3. Step 3: Cross multiply
    2,163.44x = 2,985.72 × 1,663.76
  4. Step 4: Simplify right side
    2,163.44x = 4,967,521.51
  5. Step 5: Solve for x
    x = 4,967,521.51/2,163.44
  6. Step 6: Final answer
    x = 2,296.12

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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.