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Finding the Fourth Proportional to 3,190.94, 4,779.47 and 1,544.01

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Solution

The fourth proportional to 3,190.94, 4,779.47 and 1,544.01 is: 2,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.94 : 4,779.47 = 1,544.01 : x
  2. Step 2: Convert to fraction form
    3,190.94/4,779.47 = 1,544.01/x
  3. Step 3: Cross multiply
    3,190.94x = 4,779.47 × 1,544.01
  4. Step 4: Simplify right side
    3,190.94x = 7,379,541.75
  5. Step 5: Solve for x
    x = 7,379,541.75/3,190.94
  6. Step 6: Final answer
    x = 2,312.66

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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.