Home / 4,812.42-7,215.66-1,889.40

Finding the Fourth Proportional to 4,812.42, 7,215.66 and 1,889.40

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Solution

The fourth proportional to 4,812.42, 7,215.66 and 1,889.40 is: 2,832.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.42 : 7,215.66 = 1,889.40 : x
  2. Step 2: Convert to fraction form
    4,812.42/7,215.66 = 1,889.40/x
  3. Step 3: Cross multiply
    4,812.42x = 7,215.66 × 1,889.40
  4. Step 4: Simplify right side
    4,812.42x = 13,633,268.00
  5. Step 5: Solve for x
    x = 13,633,268.00/4,812.42
  6. Step 6: Final answer
    x = 2,832.93

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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.