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Finding the Fourth Proportional to 2,761, 3,813.34 and 1,875.32

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Solution

The fourth proportional to 2,761, 3,813.34 and 1,875.32 is: 2,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761 : 3,813.34 = 1,875.32 : x
  2. Step 2: Convert to fraction form
    2,761/3,813.34 = 1,875.32/x
  3. Step 3: Cross multiply
    2,761x = 3,813.34 × 1,875.32
  4. Step 4: Simplify right side
    2,761x = 7,151,232.77
  5. Step 5: Solve for x
    x = 7,151,232.77/2,761
  6. Step 6: Final answer
    x = 2,590.09

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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.