Home / 3,386.36-5,077.49-1,409.60

Finding the Fourth Proportional to 3,386.36, 5,077.49 and 1,409.60

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Solution

The fourth proportional to 3,386.36, 5,077.49 and 1,409.60 is: 2,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.36 : 5,077.49 = 1,409.60 : x
  2. Step 2: Convert to fraction form
    3,386.36/5,077.49 = 1,409.60/x
  3. Step 3: Cross multiply
    3,386.36x = 5,077.49 × 1,409.60
  4. Step 4: Simplify right side
    3,386.36x = 7,157,197.47
  5. Step 5: Solve for x
    x = 7,157,197.47/3,386.36
  6. Step 6: Final answer
    x = 2,113.54

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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.