Home / 3,477.21-4,799.01-1,984.78

Finding the Fourth Proportional to 3,477.21, 4,799.01 and 1,984.78

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Solution

The fourth proportional to 3,477.21, 4,799.01 and 1,984.78 is: 2,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.21 : 4,799.01 = 1,984.78 : x
  2. Step 2: Convert to fraction form
    3,477.21/4,799.01 = 1,984.78/x
  3. Step 3: Cross multiply
    3,477.21x = 4,799.01 × 1,984.78
  4. Step 4: Simplify right side
    3,477.21x = 9,524,979.07
  5. Step 5: Solve for x
    x = 9,524,979.07/3,477.21
  6. Step 6: Final answer
    x = 2,739.26

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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.