Home / 3,075.60-4,245.26-2,918.88

Finding the Fourth Proportional to 3,075.60, 4,245.26 and 2,918.88

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Solution

The fourth proportional to 3,075.60, 4,245.26 and 2,918.88 is: 4,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.60 : 4,245.26 = 2,918.88 : x
  2. Step 2: Convert to fraction form
    3,075.60/4,245.26 = 2,918.88/x
  3. Step 3: Cross multiply
    3,075.60x = 4,245.26 × 2,918.88
  4. Step 4: Simplify right side
    3,075.60x = 12,391,404.51
  5. Step 5: Solve for x
    x = 12,391,404.51/3,075.60
  6. Step 6: Final answer
    x = 4,028.94

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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.