Home / 5,185.75-7,779.39-1,674.58

Finding the Fourth Proportional to 5,185.75, 7,779.39 and 1,674.58

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Solution

The fourth proportional to 5,185.75, 7,779.39 and 1,674.58 is: 2,512.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.75 : 7,779.39 = 1,674.58 : x
  2. Step 2: Convert to fraction form
    5,185.75/7,779.39 = 1,674.58/x
  3. Step 3: Cross multiply
    5,185.75x = 7,779.39 × 1,674.58
  4. Step 4: Simplify right side
    5,185.75x = 13,027,210.91
  5. Step 5: Solve for x
    x = 13,027,210.91/5,185.75
  6. Step 6: Final answer
    x = 2,512.12

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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.