Home / 2,911.72-4,368.30-1,372.36

Finding the Fourth Proportional to 2,911.72, 4,368.30 and 1,372.36

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Solution

The fourth proportional to 2,911.72, 4,368.30 and 1,372.36 is: 2,058.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.72 : 4,368.30 = 1,372.36 : x
  2. Step 2: Convert to fraction form
    2,911.72/4,368.30 = 1,372.36/x
  3. Step 3: Cross multiply
    2,911.72x = 4,368.30 × 1,372.36
  4. Step 4: Simplify right side
    2,911.72x = 5,994,880.19
  5. Step 5: Solve for x
    x = 5,994,880.19/2,911.72
  6. Step 6: Final answer
    x = 2,058.88

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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.