Home / 2,576.80-3,555.84-1,528.96

Finding the Fourth Proportional to 2,576.80, 3,555.84 and 1,528.96

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Solution

The fourth proportional to 2,576.80, 3,555.84 and 1,528.96 is: 2,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.80 : 3,555.84 = 1,528.96 : x
  2. Step 2: Convert to fraction form
    2,576.80/3,555.84 = 1,528.96/x
  3. Step 3: Cross multiply
    2,576.80x = 3,555.84 × 1,528.96
  4. Step 4: Simplify right side
    2,576.80x = 5,436,737.13
  5. Step 5: Solve for x
    x = 5,436,737.13/2,576.80
  6. Step 6: Final answer
    x = 2,109.88

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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.