Home / 3,137.44-4,327.76-2,075.20

Finding the Fourth Proportional to 3,137.44, 4,327.76 and 2,075.20

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Solution

The fourth proportional to 3,137.44, 4,327.76 and 2,075.20 is: 2,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.44 : 4,327.76 = 2,075.20 : x
  2. Step 2: Convert to fraction form
    3,137.44/4,327.76 = 2,075.20/x
  3. Step 3: Cross multiply
    3,137.44x = 4,327.76 × 2,075.20
  4. Step 4: Simplify right side
    3,137.44x = 8,980,967.55
  5. Step 5: Solve for x
    x = 8,980,967.55/3,137.44
  6. Step 6: Final answer
    x = 2,862.51

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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.