Home / 3,621.08-4,991.28-2,956.76

Finding the Fourth Proportional to 3,621.08, 4,991.28 and 2,956.76

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Solution

The fourth proportional to 3,621.08, 4,991.28 and 2,956.76 is: 4,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.08 : 4,991.28 = 2,956.76 : x
  2. Step 2: Convert to fraction form
    3,621.08/4,991.28 = 2,956.76/x
  3. Step 3: Cross multiply
    3,621.08x = 4,991.28 × 2,956.76
  4. Step 4: Simplify right side
    3,621.08x = 14,758,017.05
  5. Step 5: Solve for x
    x = 14,758,017.05/3,621.08
  6. Step 6: Final answer
    x = 4,075.58

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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.