Home / 3,412.53-5,118.80-1,772.28

Finding the Fourth Proportional to 3,412.53, 5,118.80 and 1,772.28

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Solution

The fourth proportional to 3,412.53, 5,118.80 and 1,772.28 is: 2,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.53 : 5,118.80 = 1,772.28 : x
  2. Step 2: Convert to fraction form
    3,412.53/5,118.80 = 1,772.28/x
  3. Step 3: Cross multiply
    3,412.53x = 5,118.80 × 1,772.28
  4. Step 4: Simplify right side
    3,412.53x = 9,071,938.00
  5. Step 5: Solve for x
    x = 9,071,938.00/3,412.53
  6. Step 6: Final answer
    x = 2,658.42

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1.5x scale

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.