Home / 3,490.27-4,816.68-1,918.37

Finding the Fourth Proportional to 3,490.27, 4,816.68 and 1,918.37

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Solution

The fourth proportional to 3,490.27, 4,816.68 and 1,918.37 is: 2,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.27 : 4,816.68 = 1,918.37 : x
  2. Step 2: Convert to fraction form
    3,490.27/4,816.68 = 1,918.37/x
  3. Step 3: Cross multiply
    3,490.27x = 4,816.68 × 1,918.37
  4. Step 4: Simplify right side
    3,490.27x = 9,240,174.41
  5. Step 5: Solve for x
    x = 9,240,174.41/3,490.27
  6. Step 6: Final answer
    x = 2,647.41

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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.