Home / 1,177.44-1,762.73-1,020.78

Finding the Fourth Proportional to 1,177.44, 1,762.73 and 1,020.78

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Solution

The fourth proportional to 1,177.44, 1,762.73 and 1,020.78 is: 1,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.44 : 1,762.73 = 1,020.78 : x
  2. Step 2: Convert to fraction form
    1,177.44/1,762.73 = 1,020.78/x
  3. Step 3: Cross multiply
    1,177.44x = 1,762.73 × 1,020.78
  4. Step 4: Simplify right side
    1,177.44x = 1,799,354.43
  5. Step 5: Solve for x
    x = 1,799,354.43/1,177.44
  6. Step 6: Final answer
    x = 1,528.19

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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.