Home / 6,450.43-9,672.40-2,990.11

Finding the Fourth Proportional to 6,450.43, 9,672.40 and 2,990.11

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Solution

The fourth proportional to 6,450.43, 9,672.40 and 2,990.11 is: 4,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.43 : 9,672.40 = 2,990.11 : x
  2. Step 2: Convert to fraction form
    6,450.43/9,672.40 = 2,990.11/x
  3. Step 3: Cross multiply
    6,450.43x = 9,672.40 × 2,990.11
  4. Step 4: Simplify right side
    6,450.43x = 28,921,539.96
  5. Step 5: Solve for x
    x = 28,921,539.96/6,450.43
  6. Step 6: Final answer
    x = 4,483.66

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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.