Home / 3,038.46-4,191.92-1,918.97

Finding the Fourth Proportional to 3,038.46, 4,191.92 and 1,918.97

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Solution

The fourth proportional to 3,038.46, 4,191.92 and 1,918.97 is: 2,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.46 : 4,191.92 = 1,918.97 : x
  2. Step 2: Convert to fraction form
    3,038.46/4,191.92 = 1,918.97/x
  3. Step 3: Cross multiply
    3,038.46x = 4,191.92 × 1,918.97
  4. Step 4: Simplify right side
    3,038.46x = 8,044,169.61
  5. Step 5: Solve for x
    x = 8,044,169.61/3,038.46
  6. Step 6: Final answer
    x = 2,647.45

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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.