Home / 4,051.90-5,594.50-2,989.78

Finding the Fourth Proportional to 4,051.90, 5,594.50 and 2,989.78

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Solution

The fourth proportional to 4,051.90, 5,594.50 and 2,989.78 is: 4,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.90 : 5,594.50 = 2,989.78 : x
  2. Step 2: Convert to fraction form
    4,051.90/5,594.50 = 2,989.78/x
  3. Step 3: Cross multiply
    4,051.90x = 5,594.50 × 2,989.78
  4. Step 4: Simplify right side
    4,051.90x = 16,726,324.21
  5. Step 5: Solve for x
    x = 16,726,324.21/4,051.90
  6. Step 6: Final answer
    x = 4,128.02

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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.