Home / 5,185.03-7,778.61-1,675.30

Finding the Fourth Proportional to 5,185.03, 7,778.61 and 1,675.30

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Solution

The fourth proportional to 5,185.03, 7,778.61 and 1,675.30 is: 2,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.03 : 7,778.61 = 1,675.30 : x
  2. Step 2: Convert to fraction form
    5,185.03/7,778.61 = 1,675.30/x
  3. Step 3: Cross multiply
    5,185.03x = 7,778.61 × 1,675.30
  4. Step 4: Simplify right side
    5,185.03x = 13,031,505.33
  5. Step 5: Solve for x
    x = 13,031,505.33/5,185.03
  6. Step 6: Final answer
    x = 2,513.29

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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.