Home / 3,005.80-4,508.70-2,066.20

Finding the Fourth Proportional to 3,005.80, 4,508.70 and 2,066.20

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Solution

The fourth proportional to 3,005.80, 4,508.70 and 2,066.20 is: 3,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.80 : 4,508.70 = 2,066.20 : x
  2. Step 2: Convert to fraction form
    3,005.80/4,508.70 = 2,066.20/x
  3. Step 3: Cross multiply
    3,005.80x = 4,508.70 × 2,066.20
  4. Step 4: Simplify right side
    3,005.80x = 9,315,875.94
  5. Step 5: Solve for x
    x = 9,315,875.94/3,005.80
  6. Step 6: Final answer
    x = 3,099.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.