Home / 5,185.90-7,157.35-3,061.66

Finding the Fourth Proportional to 5,185.90, 7,157.35 and 3,061.66

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Solution

The fourth proportional to 5,185.90, 7,157.35 and 3,061.66 is: 4,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.90 : 7,157.35 = 3,061.66 : x
  2. Step 2: Convert to fraction form
    5,185.90/7,157.35 = 3,061.66/x
  3. Step 3: Cross multiply
    5,185.90x = 7,157.35 × 3,061.66
  4. Step 4: Simplify right side
    5,185.90x = 21,913,354.33
  5. Step 5: Solve for x
    x = 21,913,354.33/5,185.90
  6. Step 6: Final answer
    x = 4,225.56

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1.5x scale

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.