Home / 3,030.75-4,182.62-2,020.70

Finding the Fourth Proportional to 3,030.75, 4,182.62 and 2,020.70

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Solution

The fourth proportional to 3,030.75, 4,182.62 and 2,020.70 is: 2,788.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.75 : 4,182.62 = 2,020.70 : x
  2. Step 2: Convert to fraction form
    3,030.75/4,182.62 = 2,020.70/x
  3. Step 3: Cross multiply
    3,030.75x = 4,182.62 × 2,020.70
  4. Step 4: Simplify right side
    3,030.75x = 8,451,820.59
  5. Step 5: Solve for x
    x = 8,451,820.59/3,030.75
  6. Step 6: Final answer
    x = 2,788.69

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Double scale
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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.