Home / 3,482.30-4,805.23-1,990.58

Finding the Fourth Proportional to 3,482.30, 4,805.23 and 1,990.58

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Solution

The fourth proportional to 3,482.30, 4,805.23 and 1,990.58 is: 2,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.30 : 4,805.23 = 1,990.58 : x
  2. Step 2: Convert to fraction form
    3,482.30/4,805.23 = 1,990.58/x
  3. Step 3: Cross multiply
    3,482.30x = 4,805.23 × 1,990.58
  4. Step 4: Simplify right side
    3,482.30x = 9,565,194.73
  5. Step 5: Solve for x
    x = 9,565,194.73/3,482.30
  6. Step 6: Final answer
    x = 2,746.80

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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.