Home / 1,541.16-2,311.97-445.54

Finding the Fourth Proportional to 1,541.16, 2,311.97 and 445.54

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Solution

The fourth proportional to 1,541.16, 2,311.97 and 445.54 is: 668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.16 : 2,311.97 = 445.54 : x
  2. Step 2: Convert to fraction form
    1,541.16/2,311.97 = 445.54/x
  3. Step 3: Cross multiply
    1,541.16x = 2,311.97 × 445.54
  4. Step 4: Simplify right side
    1,541.16x = 1,030,075.11
  5. Step 5: Solve for x
    x = 1,030,075.11/1,541.16
  6. Step 6: Final answer
    x = 668.38

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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.