Home / 4,812.12-7,219.80-1,525.68

Finding the Fourth Proportional to 4,812.12, 7,219.80 and 1,525.68

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Solution

The fourth proportional to 4,812.12, 7,219.80 and 1,525.68 is: 2,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.12 : 7,219.80 = 1,525.68 : x
  2. Step 2: Convert to fraction form
    4,812.12/7,219.80 = 1,525.68/x
  3. Step 3: Cross multiply
    4,812.12x = 7,219.80 × 1,525.68
  4. Step 4: Simplify right side
    4,812.12x = 11,015,104.46
  5. Step 5: Solve for x
    x = 11,015,104.46/4,812.12
  6. Step 6: Final answer
    x = 2,289.03

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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.