Home / 2,576.20-3,555.16-1,397.27

Finding the Fourth Proportional to 2,576.20, 3,555.16 and 1,397.27

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Solution

The fourth proportional to 2,576.20, 3,555.16 and 1,397.27 is: 1,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.20 : 3,555.16 = 1,397.27 : x
  2. Step 2: Convert to fraction form
    2,576.20/3,555.16 = 1,397.27/x
  3. Step 3: Cross multiply
    2,576.20x = 3,555.16 × 1,397.27
  4. Step 4: Simplify right side
    2,576.20x = 4,967,511.43
  5. Step 5: Solve for x
    x = 4,967,511.43/2,576.20
  6. Step 6: Final answer
    x = 1,928.24

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1.5x scale

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.