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Finding the Fourth Proportional to 2,865.04, 4,285.69 and 2,690.08

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Solution

The fourth proportional to 2,865.04, 4,285.69 and 2,690.08 is: 4,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.04 : 4,285.69 = 2,690.08 : x
  2. Step 2: Convert to fraction form
    2,865.04/4,285.69 = 2,690.08/x
  3. Step 3: Cross multiply
    2,865.04x = 4,285.69 × 2,690.08
  4. Step 4: Simplify right side
    2,865.04x = 11,528,848.96
  5. Step 5: Solve for x
    x = 11,528,848.96/2,865.04
  6. Step 6: Final answer
    x = 4,023.97

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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.