Home / 3,823.84-5,276.58-2,145.01

Finding the Fourth Proportional to 3,823.84, 5,276.58 and 2,145.01

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Solution

The fourth proportional to 3,823.84, 5,276.58 and 2,145.01 is: 2,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.84 : 5,276.58 = 2,145.01 : x
  2. Step 2: Convert to fraction form
    3,823.84/5,276.58 = 2,145.01/x
  3. Step 3: Cross multiply
    3,823.84x = 5,276.58 × 2,145.01
  4. Step 4: Simplify right side
    3,823.84x = 11,318,324.91
  5. Step 5: Solve for x
    x = 11,318,324.91/3,823.84
  6. Step 6: Final answer
    x = 2,959.94

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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.