Home / 3,768.48-5,655.84-1,920.96

Finding the Fourth Proportional to 3,768.48, 5,655.84 and 1,920.96

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Solution

The fourth proportional to 3,768.48, 5,655.84 and 1,920.96 is: 2,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.48 : 5,655.84 = 1,920.96 : x
  2. Step 2: Convert to fraction form
    3,768.48/5,655.84 = 1,920.96/x
  3. Step 3: Cross multiply
    3,768.48x = 5,655.84 × 1,920.96
  4. Step 4: Simplify right side
    3,768.48x = 10,864,642.41
  5. Step 5: Solve for x
    x = 10,864,642.41/3,768.48
  6. Step 6: Final answer
    x = 2,883.03

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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.