Home / 2,509.96-3,765.30-1,048.78

Finding the Fourth Proportional to 2,509.96, 3,765.30 and 1,048.78

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Solution

The fourth proportional to 2,509.96, 3,765.30 and 1,048.78 is: 1,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.96 : 3,765.30 = 1,048.78 : x
  2. Step 2: Convert to fraction form
    2,509.96/3,765.30 = 1,048.78/x
  3. Step 3: Cross multiply
    2,509.96x = 3,765.30 × 1,048.78
  4. Step 4: Simplify right side
    2,509.96x = 3,948,971.33
  5. Step 5: Solve for x
    x = 3,948,971.33/2,509.96
  6. Step 6: Final answer
    x = 1,573.32

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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.