Home / 2,351.07-3,243.72-1,407

Finding the Fourth Proportional to 2,351.07, 3,243.72 and 1,407

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Solution

The fourth proportional to 2,351.07, 3,243.72 and 1,407 is: 1,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.07 : 3,243.72 = 1,407 : x
  2. Step 2: Convert to fraction form
    2,351.07/3,243.72 = 1,407/x
  3. Step 3: Cross multiply
    2,351.07x = 3,243.72 × 1,407
  4. Step 4: Simplify right side
    2,351.07x = 4,563,914.04
  5. Step 5: Solve for x
    x = 4,563,914.04/2,351.07
  6. Step 6: Final answer
    x = 1,941.21

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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.