Home / 2,990.82-4,484.37-2,604.45

Finding the Fourth Proportional to 2,990.82, 4,484.37 and 2,604.45

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Solution

The fourth proportional to 2,990.82, 4,484.37 and 2,604.45 is: 3,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.82 : 4,484.37 = 2,604.45 : x
  2. Step 2: Convert to fraction form
    2,990.82/4,484.37 = 2,604.45/x
  3. Step 3: Cross multiply
    2,990.82x = 4,484.37 × 2,604.45
  4. Step 4: Simplify right side
    2,990.82x = 11,679,317.45
  5. Step 5: Solve for x
    x = 11,679,317.45/2,990.82
  6. Step 6: Final answer
    x = 3,905.06

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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.