Home / 1,541.06-2,311.52-445.40

Finding the Fourth Proportional to 1,541.06, 2,311.52 and 445.40

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Solution

The fourth proportional to 1,541.06, 2,311.52 and 445.40 is: 668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.06 : 2,311.52 = 445.40 : x
  2. Step 2: Convert to fraction form
    1,541.06/2,311.52 = 445.40/x
  3. Step 3: Cross multiply
    1,541.06x = 2,311.52 × 445.40
  4. Step 4: Simplify right side
    1,541.06x = 1,029,537.22
  5. Step 5: Solve for x
    x = 1,029,537.22/1,541.06
  6. Step 6: Final answer
    x = 668.07

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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.