Home / 2,528.22-3,489-1,393.98

Finding the Fourth Proportional to 2,528.22, 3,489 and 1,393.98

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Solution

The fourth proportional to 2,528.22, 3,489 and 1,393.98 is: 1,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.22 : 3,489 = 1,393.98 : x
  2. Step 2: Convert to fraction form
    2,528.22/3,489 = 1,393.98/x
  3. Step 3: Cross multiply
    2,528.22x = 3,489 × 1,393.98
  4. Step 4: Simplify right side
    2,528.22x = 4,863,596.22
  5. Step 5: Solve for x
    x = 4,863,596.22/2,528.22
  6. Step 6: Final answer
    x = 1,923.72

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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.