Home / 4,887.45-7,315.14-2,662.89

Finding the Fourth Proportional to 4,887.45, 7,315.14 and 2,662.89

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Solution

The fourth proportional to 4,887.45, 7,315.14 and 2,662.89 is: 3,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.45 : 7,315.14 = 2,662.89 : x
  2. Step 2: Convert to fraction form
    4,887.45/7,315.14 = 2,662.89/x
  3. Step 3: Cross multiply
    4,887.45x = 7,315.14 × 2,662.89
  4. Step 4: Simplify right side
    4,887.45x = 19,479,413.15
  5. Step 5: Solve for x
    x = 19,479,413.15/4,887.45
  6. Step 6: Final answer
    x = 3,985.60

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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.