Home / 1,898.98-2,619.70-1,235.59

Finding the Fourth Proportional to 1,898.98, 2,619.70 and 1,235.59

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Solution

The fourth proportional to 1,898.98, 2,619.70 and 1,235.59 is: 1,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.98 : 2,619.70 = 1,235.59 : x
  2. Step 2: Convert to fraction form
    1,898.98/2,619.70 = 1,235.59/x
  3. Step 3: Cross multiply
    1,898.98x = 2,619.70 × 1,235.59
  4. Step 4: Simplify right side
    1,898.98x = 3,236,875.12
  5. Step 5: Solve for x
    x = 3,236,875.12/1,898.98
  6. Step 6: Final answer
    x = 1,704.53

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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.