Home / 3,111.84-4,297.68-2,528.64

Finding the Fourth Proportional to 3,111.84, 4,297.68 and 2,528.64

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Solution

The fourth proportional to 3,111.84, 4,297.68 and 2,528.64 is: 3,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.84 : 4,297.68 = 2,528.64 : x
  2. Step 2: Convert to fraction form
    3,111.84/4,297.68 = 2,528.64/x
  3. Step 3: Cross multiply
    3,111.84x = 4,297.68 × 2,528.64
  4. Step 4: Simplify right side
    3,111.84x = 10,867,285.56
  5. Step 5: Solve for x
    x = 10,867,285.56/3,111.84
  6. Step 6: Final answer
    x = 3,492.24

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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.