Home / 4,984.80-7,477.20-3,429.60

Finding the Fourth Proportional to 4,984.80, 7,477.20 and 3,429.60

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Solution

The fourth proportional to 4,984.80, 7,477.20 and 3,429.60 is: 5,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.80 : 7,477.20 = 3,429.60 : x
  2. Step 2: Convert to fraction form
    4,984.80/7,477.20 = 3,429.60/x
  3. Step 3: Cross multiply
    4,984.80x = 7,477.20 × 3,429.60
  4. Step 4: Simplify right side
    4,984.80x = 25,643,805.12
  5. Step 5: Solve for x
    x = 25,643,805.12/4,984.80
  6. Step 6: Final answer
    x = 5,144.40

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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.