Home / 3,377.32-4,660.69-1,980.07

Finding the Fourth Proportional to 3,377.32, 4,660.69 and 1,980.07

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Solution

The fourth proportional to 3,377.32, 4,660.69 and 1,980.07 is: 2,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.32 : 4,660.69 = 1,980.07 : x
  2. Step 2: Convert to fraction form
    3,377.32/4,660.69 = 1,980.07/x
  3. Step 3: Cross multiply
    3,377.32x = 4,660.69 × 1,980.07
  4. Step 4: Simplify right side
    3,377.32x = 9,228,492.45
  5. Step 5: Solve for x
    x = 9,228,492.45/3,377.32
  6. Step 6: Final answer
    x = 2,732.49

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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.