Home / 3,376.98-4,661.01-1,980.18

Finding the Fourth Proportional to 3,376.98, 4,661.01 and 1,980.18

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Solution

The fourth proportional to 3,376.98, 4,661.01 and 1,980.18 is: 2,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.98 : 4,661.01 = 1,980.18 : x
  2. Step 2: Convert to fraction form
    3,376.98/4,661.01 = 1,980.18/x
  3. Step 3: Cross multiply
    3,376.98x = 4,661.01 × 1,980.18
  4. Step 4: Simplify right side
    3,376.98x = 9,229,638.78
  5. Step 5: Solve for x
    x = 9,229,638.78/3,376.98
  6. Step 6: Final answer
    x = 2,733.10

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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.