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Finding the Fourth Proportional to 2,877.72, 4,317.99 and 1,491.01

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Solution

The fourth proportional to 2,877.72, 4,317.99 and 1,491.01 is: 2,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.72 : 4,317.99 = 1,491.01 : x
  2. Step 2: Convert to fraction form
    2,877.72/4,317.99 = 1,491.01/x
  3. Step 3: Cross multiply
    2,877.72x = 4,317.99 × 1,491.01
  4. Step 4: Simplify right side
    2,877.72x = 6,438,166.27
  5. Step 5: Solve for x
    x = 6,438,166.27/2,877.72
  6. Step 6: Final answer
    x = 2,237.25

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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.