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Finding the Fourth Proportional to 2,878.00, 4,309.71 and 1,779.03

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Solution

The fourth proportional to 2,878.00, 4,309.71 and 1,779.03 is: 2,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.00 : 4,309.71 = 1,779.03 : x
  2. Step 2: Convert to fraction form
    2,878.00/4,309.71 = 1,779.03/x
  3. Step 3: Cross multiply
    2,878.00x = 4,309.71 × 1,779.03
  4. Step 4: Simplify right side
    2,878.00x = 7,667,096.71
  5. Step 5: Solve for x
    x = 7,667,096.71/2,878.00
  6. Step 6: Final answer
    x = 2,664.04

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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.