Home / 2,663.28-3,995.04-1,929.36

Finding the Fourth Proportional to 2,663.28, 3,995.04 and 1,929.36

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Solution

The fourth proportional to 2,663.28, 3,995.04 and 1,929.36 is: 2,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.28 : 3,995.04 = 1,929.36 : x
  2. Step 2: Convert to fraction form
    2,663.28/3,995.04 = 1,929.36/x
  3. Step 3: Cross multiply
    2,663.28x = 3,995.04 × 1,929.36
  4. Step 4: Simplify right side
    2,663.28x = 7,707,870.37
  5. Step 5: Solve for x
    x = 7,707,870.37/2,663.28
  6. Step 6: Final answer
    x = 2,894.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.