Home / 3,945-5,444.10-2,289.32

Finding the Fourth Proportional to 3,945, 5,444.10 and 2,289.32

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Solution

The fourth proportional to 3,945, 5,444.10 and 2,289.32 is: 3,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945 : 5,444.10 = 2,289.32 : x
  2. Step 2: Convert to fraction form
    3,945/5,444.10 = 2,289.32/x
  3. Step 3: Cross multiply
    3,945x = 5,444.10 × 2,289.32
  4. Step 4: Simplify right side
    3,945x = 12,463,287.01
  5. Step 5: Solve for x
    x = 12,463,287.01/3,945
  6. Step 6: Final answer
    x = 3,159.26

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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.