Home / 9,128.44-13,692.40-2,888.20

Finding the Fourth Proportional to 9,128.44, 13,692.40 and 2,888.20

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Solution

The fourth proportional to 9,128.44, 13,692.40 and 2,888.20 is: 4,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.44 : 13,692.40 = 2,888.20 : x
  2. Step 2: Convert to fraction form
    9,128.44/13,692.40 = 2,888.20/x
  3. Step 3: Cross multiply
    9,128.44x = 13,692.40 × 2,888.20
  4. Step 4: Simplify right side
    9,128.44x = 39,546,389.68
  5. Step 5: Solve for x
    x = 39,546,389.68/9,128.44
  6. Step 6: Final answer
    x = 4,332.22

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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.