Home / 2,683.63-4,031.58-1,905.55

Finding the Fourth Proportional to 2,683.63, 4,031.58 and 1,905.55

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Solution

The fourth proportional to 2,683.63, 4,031.58 and 1,905.55 is: 2,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.63 : 4,031.58 = 1,905.55 : x
  2. Step 2: Convert to fraction form
    2,683.63/4,031.58 = 1,905.55/x
  3. Step 3: Cross multiply
    2,683.63x = 4,031.58 × 1,905.55
  4. Step 4: Simplify right side
    2,683.63x = 7,682,377.27
  5. Step 5: Solve for x
    x = 7,682,377.27/2,683.63
  6. Step 6: Final answer
    x = 2,862.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.