Home / 5,145.37-7,100.19-2,907.44

Finding the Fourth Proportional to 5,145.37, 7,100.19 and 2,907.44

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Solution

The fourth proportional to 5,145.37, 7,100.19 and 2,907.44 is: 4,012.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.37 : 7,100.19 = 2,907.44 : x
  2. Step 2: Convert to fraction form
    5,145.37/7,100.19 = 2,907.44/x
  3. Step 3: Cross multiply
    5,145.37x = 7,100.19 × 2,907.44
  4. Step 4: Simplify right side
    5,145.37x = 20,643,376.41
  5. Step 5: Solve for x
    x = 20,643,376.41/5,145.37
  6. Step 6: Final answer
    x = 4,012.03

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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.