Home / 2,576.40-3,555.27-1,528.26

Finding the Fourth Proportional to 2,576.40, 3,555.27 and 1,528.26

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Solution

The fourth proportional to 2,576.40, 3,555.27 and 1,528.26 is: 2,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.40 : 3,555.27 = 1,528.26 : x
  2. Step 2: Convert to fraction form
    2,576.40/3,555.27 = 1,528.26/x
  3. Step 3: Cross multiply
    2,576.40x = 3,555.27 × 1,528.26
  4. Step 4: Simplify right side
    2,576.40x = 5,433,376.93
  5. Step 5: Solve for x
    x = 5,433,376.93/2,576.40
  6. Step 6: Final answer
    x = 2,108.90

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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.