Home / 1,808.21-2,496.56-1,368.51

Finding the Fourth Proportional to 1,808.21, 2,496.56 and 1,368.51

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Solution

The fourth proportional to 1,808.21, 2,496.56 and 1,368.51 is: 1,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.21 : 2,496.56 = 1,368.51 : x
  2. Step 2: Convert to fraction form
    1,808.21/2,496.56 = 1,368.51/x
  3. Step 3: Cross multiply
    1,808.21x = 2,496.56 × 1,368.51
  4. Step 4: Simplify right side
    1,808.21x = 3,416,560.48
  5. Step 5: Solve for x
    x = 3,416,560.48/1,808.21
  6. Step 6: Final answer
    x = 1,889.48

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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.