Home / 2,813.08-3,881.64-1,765.48

Finding the Fourth Proportional to 2,813.08, 3,881.64 and 1,765.48

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Solution

The fourth proportional to 2,813.08, 3,881.64 and 1,765.48 is: 2,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.08 : 3,881.64 = 1,765.48 : x
  2. Step 2: Convert to fraction form
    2,813.08/3,881.64 = 1,765.48/x
  3. Step 3: Cross multiply
    2,813.08x = 3,881.64 × 1,765.48
  4. Step 4: Simplify right side
    2,813.08x = 6,852,957.79
  5. Step 5: Solve for x
    x = 6,852,957.79/2,813.08
  6. Step 6: Final answer
    x = 2,436.10

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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.