Home / 7,165.50-10,745.49-2,782.38

Finding the Fourth Proportional to 7,165.50, 10,745.49 and 2,782.38

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Solution

The fourth proportional to 7,165.50, 10,745.49 and 2,782.38 is: 4,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.50 : 10,745.49 = 2,782.38 : x
  2. Step 2: Convert to fraction form
    7,165.50/10,745.49 = 2,782.38/x
  3. Step 3: Cross multiply
    7,165.50x = 10,745.49 × 2,782.38
  4. Step 4: Simplify right side
    7,165.50x = 29,898,036.47
  5. Step 5: Solve for x
    x = 29,898,036.47/7,165.50
  6. Step 6: Final answer
    x = 4,172.50

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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.