Home / 2,906.80-4,011.36-1,580.51

Finding the Fourth Proportional to 2,906.80, 4,011.36 and 1,580.51

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Solution

The fourth proportional to 2,906.80, 4,011.36 and 1,580.51 is: 2,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.80 : 4,011.36 = 1,580.51 : x
  2. Step 2: Convert to fraction form
    2,906.80/4,011.36 = 1,580.51/x
  3. Step 3: Cross multiply
    2,906.80x = 4,011.36 × 1,580.51
  4. Step 4: Simplify right side
    2,906.80x = 6,340,005.36
  5. Step 5: Solve for x
    x = 6,340,005.36/2,906.80
  6. Step 6: Final answer
    x = 2,181.10

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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.