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Finding the Fourth Proportional to 2,875.06, 4,309.05 and 1,703.90

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Solution

The fourth proportional to 2,875.06, 4,309.05 and 1,703.90 is: 2,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.06 : 4,309.05 = 1,703.90 : x
  2. Step 2: Convert to fraction form
    2,875.06/4,309.05 = 1,703.90/x
  3. Step 3: Cross multiply
    2,875.06x = 4,309.05 × 1,703.90
  4. Step 4: Simplify right side
    2,875.06x = 7,342,190.30
  5. Step 5: Solve for x
    x = 7,342,190.30/2,875.06
  6. Step 6: Final answer
    x = 2,553.75

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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.