Home / 3,128.79-4,683.84-1,892.44

Finding the Fourth Proportional to 3,128.79, 4,683.84 and 1,892.44

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Solution

The fourth proportional to 3,128.79, 4,683.84 and 1,892.44 is: 2,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.79 : 4,683.84 = 1,892.44 : x
  2. Step 2: Convert to fraction form
    3,128.79/4,683.84 = 1,892.44/x
  3. Step 3: Cross multiply
    3,128.79x = 4,683.84 × 1,892.44
  4. Step 4: Simplify right side
    3,128.79x = 8,863,886.17
  5. Step 5: Solve for x
    x = 8,863,886.17/3,128.79
  6. Step 6: Final answer
    x = 2,833.01

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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.