Home / 4,800.80-7,200.60-1,291.07

Finding the Fourth Proportional to 4,800.80, 7,200.60 and 1,291.07

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Solution

The fourth proportional to 4,800.80, 7,200.60 and 1,291.07 is: 1,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.80 : 7,200.60 = 1,291.07 : x
  2. Step 2: Convert to fraction form
    4,800.80/7,200.60 = 1,291.07/x
  3. Step 3: Cross multiply
    4,800.80x = 7,200.60 × 1,291.07
  4. Step 4: Simplify right side
    4,800.80x = 9,296,442.64
  5. Step 5: Solve for x
    x = 9,296,442.64/4,800.80
  6. Step 6: Final answer
    x = 1,936.44

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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.