Home / 1,898-2,619.21-1,527.56

Finding the Fourth Proportional to 1,898, 2,619.21 and 1,527.56

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Solution

The fourth proportional to 1,898, 2,619.21 and 1,527.56 is: 2,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898 : 2,619.21 = 1,527.56 : x
  2. Step 2: Convert to fraction form
    1,898/2,619.21 = 1,527.56/x
  3. Step 3: Cross multiply
    1,898x = 2,619.21 × 1,527.56
  4. Step 4: Simplify right side
    1,898x = 4,001,000.43
  5. Step 5: Solve for x
    x = 4,001,000.43/1,898
  6. Step 6: Final answer
    x = 2,108.01

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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.