Home / 1,048.24-1,443.26-890.54

Finding the Fourth Proportional to 1,048.24, 1,443.26 and 890.54

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Solution

The fourth proportional to 1,048.24, 1,443.26 and 890.54 is: 1,226.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.24 : 1,443.26 = 890.54 : x
  2. Step 2: Convert to fraction form
    1,048.24/1,443.26 = 890.54/x
  3. Step 3: Cross multiply
    1,048.24x = 1,443.26 × 890.54
  4. Step 4: Simplify right side
    1,048.24x = 1,285,280.76
  5. Step 5: Solve for x
    x = 1,285,280.76/1,048.24
  6. Step 6: Final answer
    x = 1,226.13

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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.