Home / 2,554.35-3,829.58-1,320.98

Finding the Fourth Proportional to 2,554.35, 3,829.58 and 1,320.98

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Solution

The fourth proportional to 2,554.35, 3,829.58 and 1,320.98 is: 1,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.35 : 3,829.58 = 1,320.98 : x
  2. Step 2: Convert to fraction form
    2,554.35/3,829.58 = 1,320.98/x
  3. Step 3: Cross multiply
    2,554.35x = 3,829.58 × 1,320.98
  4. Step 4: Simplify right side
    2,554.35x = 5,058,779.44
  5. Step 5: Solve for x
    x = 5,058,779.44/2,554.35
  6. Step 6: Final answer
    x = 1,980.45

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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.