Home / 4,758.51-7,137.63-2,128.44

Finding the Fourth Proportional to 4,758.51, 7,137.63 and 2,128.44

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Solution

The fourth proportional to 4,758.51, 7,137.63 and 2,128.44 is: 3,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.51 : 7,137.63 = 2,128.44 : x
  2. Step 2: Convert to fraction form
    4,758.51/7,137.63 = 2,128.44/x
  3. Step 3: Cross multiply
    4,758.51x = 7,137.63 × 2,128.44
  4. Step 4: Simplify right side
    4,758.51x = 15,192,017.20
  5. Step 5: Solve for x
    x = 15,192,017.20/4,758.51
  6. Step 6: Final answer
    x = 3,192.60

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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.