Home / 3,038.85-4,194.03-1,780.41

Finding the Fourth Proportional to 3,038.85, 4,194.03 and 1,780.41

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Solution

The fourth proportional to 3,038.85, 4,194.03 and 1,780.41 is: 2,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.85 : 4,194.03 = 1,780.41 : x
  2. Step 2: Convert to fraction form
    3,038.85/4,194.03 = 1,780.41/x
  3. Step 3: Cross multiply
    3,038.85x = 4,194.03 × 1,780.41
  4. Step 4: Simplify right side
    3,038.85x = 7,467,078.40
  5. Step 5: Solve for x
    x = 7,467,078.40/3,038.85
  6. Step 6: Final answer
    x = 2,457.20

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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.