Home / 3,428.48-5,140.42-1,577.09

Finding the Fourth Proportional to 3,428.48, 5,140.42 and 1,577.09

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Solution

The fourth proportional to 3,428.48, 5,140.42 and 1,577.09 is: 2,364.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.48 : 5,140.42 = 1,577.09 : x
  2. Step 2: Convert to fraction form
    3,428.48/5,140.42 = 1,577.09/x
  3. Step 3: Cross multiply
    3,428.48x = 5,140.42 × 1,577.09
  4. Step 4: Simplify right side
    3,428.48x = 8,106,875.33
  5. Step 5: Solve for x
    x = 8,106,875.33/3,428.48
  6. Step 6: Final answer
    x = 2,364.57

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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.