Home / 1,708.68-2,558.34-1,290.98

Finding the Fourth Proportional to 1,708.68, 2,558.34 and 1,290.98

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Solution

The fourth proportional to 1,708.68, 2,558.34 and 1,290.98 is: 1,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.68 : 2,558.34 = 1,290.98 : x
  2. Step 2: Convert to fraction form
    1,708.68/2,558.34 = 1,290.98/x
  3. Step 3: Cross multiply
    1,708.68x = 2,558.34 × 1,290.98
  4. Step 4: Simplify right side
    1,708.68x = 3,302,765.77
  5. Step 5: Solve for x
    x = 3,302,765.77/1,708.68
  6. Step 6: Final answer
    x = 1,932.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.