Home / 2,629.64-3,943.43-1,808.15

Finding the Fourth Proportional to 2,629.64, 3,943.43 and 1,808.15

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Solution

The fourth proportional to 2,629.64, 3,943.43 and 1,808.15 is: 2,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.64 : 3,943.43 = 1,808.15 : x
  2. Step 2: Convert to fraction form
    2,629.64/3,943.43 = 1,808.15/x
  3. Step 3: Cross multiply
    2,629.64x = 3,943.43 × 1,808.15
  4. Step 4: Simplify right side
    2,629.64x = 7,130,312.24
  5. Step 5: Solve for x
    x = 7,130,312.24/2,629.64
  6. Step 6: Final answer
    x = 2,711.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.