Home / 4,475.90-6,705.84-2,990.63

Finding the Fourth Proportional to 4,475.90, 6,705.84 and 2,990.63

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Solution

The fourth proportional to 4,475.90, 6,705.84 and 2,990.63 is: 4,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,475.90 : 6,705.84 = 2,990.63 : x
  2. Step 2: Convert to fraction form
    4,475.90/6,705.84 = 2,990.63/x
  3. Step 3: Cross multiply
    4,475.90x = 6,705.84 × 2,990.63
  4. Step 4: Simplify right side
    4,475.90x = 20,054,686.28
  5. Step 5: Solve for x
    x = 20,054,686.28/4,475.90
  6. Step 6: Final answer
    x = 4,480.59

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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.