Home / 1,368.15-2,052.40-674.25

Finding the Fourth Proportional to 1,368.15, 2,052.40 and 674.25

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Solution

The fourth proportional to 1,368.15, 2,052.40 and 674.25 is: 1,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.15 : 2,052.40 = 674.25 : x
  2. Step 2: Convert to fraction form
    1,368.15/2,052.40 = 674.25/x
  3. Step 3: Cross multiply
    1,368.15x = 2,052.40 × 674.25
  4. Step 4: Simplify right side
    1,368.15x = 1,383,830.70
  5. Step 5: Solve for x
    x = 1,383,830.70/1,368.15
  6. Step 6: Final answer
    x = 1,011.46

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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.