Home / 1,930.24-2,663.04-1,921.60

Finding the Fourth Proportional to 1,930.24, 2,663.04 and 1,921.60

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Solution

The fourth proportional to 1,930.24, 2,663.04 and 1,921.60 is: 2,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.24 : 2,663.04 = 1,921.60 : x
  2. Step 2: Convert to fraction form
    1,930.24/2,663.04 = 1,921.60/x
  3. Step 3: Cross multiply
    1,930.24x = 2,663.04 × 1,921.60
  4. Step 4: Simplify right side
    1,930.24x = 5,117,297.66
  5. Step 5: Solve for x
    x = 5,117,297.66/1,930.24
  6. Step 6: Final answer
    x = 2,651.12

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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.