Home / 3,428.87-4,727.36-2,956.23

Finding the Fourth Proportional to 3,428.87, 4,727.36 and 2,956.23

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Solution

The fourth proportional to 3,428.87, 4,727.36 and 2,956.23 is: 4,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.87 : 4,727.36 = 2,956.23 : x
  2. Step 2: Convert to fraction form
    3,428.87/4,727.36 = 2,956.23/x
  3. Step 3: Cross multiply
    3,428.87x = 4,727.36 × 2,956.23
  4. Step 4: Simplify right side
    3,428.87x = 13,975,170.84
  5. Step 5: Solve for x
    x = 13,975,170.84/3,428.87
  6. Step 6: Final answer
    x = 4,075.74

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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.