Home / 3,020.78-4,527.30-1,263.80

Finding the Fourth Proportional to 3,020.78, 4,527.30 and 1,263.80

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Solution

The fourth proportional to 3,020.78, 4,527.30 and 1,263.80 is: 1,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.78 : 4,527.30 = 1,263.80 : x
  2. Step 2: Convert to fraction form
    3,020.78/4,527.30 = 1,263.80/x
  3. Step 3: Cross multiply
    3,020.78x = 4,527.30 × 1,263.80
  4. Step 4: Simplify right side
    3,020.78x = 5,721,601.74
  5. Step 5: Solve for x
    x = 5,721,601.74/3,020.78
  6. Step 6: Final answer
    x = 1,894.08

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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.