Home / 2,885.04-3,982.68-1,890.36

Finding the Fourth Proportional to 2,885.04, 3,982.68 and 1,890.36

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Solution

The fourth proportional to 2,885.04, 3,982.68 and 1,890.36 is: 2,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.04 : 3,982.68 = 1,890.36 : x
  2. Step 2: Convert to fraction form
    2,885.04/3,982.68 = 1,890.36/x
  3. Step 3: Cross multiply
    2,885.04x = 3,982.68 × 1,890.36
  4. Step 4: Simplify right side
    2,885.04x = 7,528,698.96
  5. Step 5: Solve for x
    x = 7,528,698.96/2,885.04
  6. Step 6: Final answer
    x = 2,609.56

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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.