Home / 3,128.06-4,692.10-1,254.80

Finding the Fourth Proportional to 3,128.06, 4,692.10 and 1,254.80

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Solution

The fourth proportional to 3,128.06, 4,692.10 and 1,254.80 is: 1,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.06 : 4,692.10 = 1,254.80 : x
  2. Step 2: Convert to fraction form
    3,128.06/4,692.10 = 1,254.80/x
  3. Step 3: Cross multiply
    3,128.06x = 4,692.10 × 1,254.80
  4. Step 4: Simplify right side
    3,128.06x = 5,887,647.08
  5. Step 5: Solve for x
    x = 5,887,647.08/3,128.06
  6. Step 6: Final answer
    x = 1,882.20

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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.