Home / 3,852.09-5,779.29-1,629.78

Finding the Fourth Proportional to 3,852.09, 5,779.29 and 1,629.78

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Solution

The fourth proportional to 3,852.09, 5,779.29 and 1,629.78 is: 2,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.09 : 5,779.29 = 1,629.78 : x
  2. Step 2: Convert to fraction form
    3,852.09/5,779.29 = 1,629.78/x
  3. Step 3: Cross multiply
    3,852.09x = 5,779.29 × 1,629.78
  4. Step 4: Simplify right side
    3,852.09x = 9,418,955.70
  5. Step 5: Solve for x
    x = 9,418,955.70/3,852.09
  6. Step 6: Final answer
    x = 2,445.15

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1.5x scale

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.