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Finding the Fourth Proportional to 3,070.93, 4,238.05 and 1,812.72

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Solution

The fourth proportional to 3,070.93, 4,238.05 and 1,812.72 is: 2,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.93 : 4,238.05 = 1,812.72 : x
  2. Step 2: Convert to fraction form
    3,070.93/4,238.05 = 1,812.72/x
  3. Step 3: Cross multiply
    3,070.93x = 4,238.05 × 1,812.72
  4. Step 4: Simplify right side
    3,070.93x = 7,682,398.00
  5. Step 5: Solve for x
    x = 7,682,398.00/3,070.93
  6. Step 6: Final answer
    x = 2,501.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.