Home / 3,038.96-4,194.82-1,780.42

Finding the Fourth Proportional to 3,038.96, 4,194.82 and 1,780.42

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Solution

The fourth proportional to 3,038.96, 4,194.82 and 1,780.42 is: 2,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.96 : 4,194.82 = 1,780.42 : x
  2. Step 2: Convert to fraction form
    3,038.96/4,194.82 = 1,780.42/x
  3. Step 3: Cross multiply
    3,038.96x = 4,194.82 × 1,780.42
  4. Step 4: Simplify right side
    3,038.96x = 7,468,541.42
  5. Step 5: Solve for x
    x = 7,468,541.42/3,038.96
  6. Step 6: Final answer
    x = 2,457.60

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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.