Home / 4,206.19-6,309.28-1,128.19

Finding the Fourth Proportional to 4,206.19, 6,309.28 and 1,128.19

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Solution

The fourth proportional to 4,206.19, 6,309.28 and 1,128.19 is: 1,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.19 : 6,309.28 = 1,128.19 : x
  2. Step 2: Convert to fraction form
    4,206.19/6,309.28 = 1,128.19/x
  3. Step 3: Cross multiply
    4,206.19x = 6,309.28 × 1,128.19
  4. Step 4: Simplify right side
    4,206.19x = 7,118,052.24
  5. Step 5: Solve for x
    x = 7,118,052.24/4,206.19
  6. Step 6: Final answer
    x = 1,692.28

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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.