Home / 3,409.49-4,703.75-2,515.37

Finding the Fourth Proportional to 3,409.49, 4,703.75 and 2,515.37

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Solution

The fourth proportional to 3,409.49, 4,703.75 and 2,515.37 is: 3,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.49 : 4,703.75 = 2,515.37 : x
  2. Step 2: Convert to fraction form
    3,409.49/4,703.75 = 2,515.37/x
  3. Step 3: Cross multiply
    3,409.49x = 4,703.75 × 2,515.37
  4. Step 4: Simplify right side
    3,409.49x = 11,831,635.54
  5. Step 5: Solve for x
    x = 11,831,635.54/3,409.49
  6. Step 6: Final answer
    x = 3,470.21

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1.5x scale

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.