Home / 3,428.59-5,143.01-1,762.26

Finding the Fourth Proportional to 3,428.59, 5,143.01 and 1,762.26

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Solution

The fourth proportional to 3,428.59, 5,143.01 and 1,762.26 is: 2,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.59 : 5,143.01 = 1,762.26 : x
  2. Step 2: Convert to fraction form
    3,428.59/5,143.01 = 1,762.26/x
  3. Step 3: Cross multiply
    3,428.59x = 5,143.01 × 1,762.26
  4. Step 4: Simplify right side
    3,428.59x = 9,063,331.28
  5. Step 5: Solve for x
    x = 9,063,331.28/3,428.59
  6. Step 6: Final answer
    x = 2,643.46

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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.