Home / 4,815.09-7,221.81-1,527.45

Finding the Fourth Proportional to 4,815.09, 7,221.81 and 1,527.45

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Solution

The fourth proportional to 4,815.09, 7,221.81 and 1,527.45 is: 2,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.09 : 7,221.81 = 1,527.45 : x
  2. Step 2: Convert to fraction form
    4,815.09/7,221.81 = 1,527.45/x
  3. Step 3: Cross multiply
    4,815.09x = 7,221.81 × 1,527.45
  4. Step 4: Simplify right side
    4,815.09x = 11,030,953.68
  5. Step 5: Solve for x
    x = 11,030,953.68/4,815.09
  6. Step 6: Final answer
    x = 2,290.91

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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.