Home / 2,576.21-3,555.11-1,528.25

Finding the Fourth Proportional to 2,576.21, 3,555.11 and 1,528.25

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Solution

The fourth proportional to 2,576.21, 3,555.11 and 1,528.25 is: 2,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.21 : 3,555.11 = 1,528.25 : x
  2. Step 2: Convert to fraction form
    2,576.21/3,555.11 = 1,528.25/x
  3. Step 3: Cross multiply
    2,576.21x = 3,555.11 × 1,528.25
  4. Step 4: Simplify right side
    2,576.21x = 5,433,089.22
  5. Step 5: Solve for x
    x = 5,433,089.22/2,576.21
  6. Step 6: Final answer
    x = 2,108.95

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Half scale
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Double scale
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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.