Home / 1,151.28-1,583.96-1,004.27

Finding the Fourth Proportional to 1,151.28, 1,583.96 and 1,004.27

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Solution

The fourth proportional to 1,151.28, 1,583.96 and 1,004.27 is: 1,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.28 : 1,583.96 = 1,004.27 : x
  2. Step 2: Convert to fraction form
    1,151.28/1,583.96 = 1,004.27/x
  3. Step 3: Cross multiply
    1,151.28x = 1,583.96 × 1,004.27
  4. Step 4: Simplify right side
    1,151.28x = 1,590,710.57
  5. Step 5: Solve for x
    x = 1,590,710.57/1,151.28
  6. Step 6: Final answer
    x = 1,381.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.