Home / 6,450.48-9,680.56-2,990.16

Finding the Fourth Proportional to 6,450.48, 9,680.56 and 2,990.16

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Solution

The fourth proportional to 6,450.48, 9,680.56 and 2,990.16 is: 4,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.48 : 9,680.56 = 2,990.16 : x
  2. Step 2: Convert to fraction form
    6,450.48/9,680.56 = 2,990.16/x
  3. Step 3: Cross multiply
    6,450.48x = 9,680.56 × 2,990.16
  4. Step 4: Simplify right side
    6,450.48x = 28,946,423.29
  5. Step 5: Solve for x
    x = 28,946,423.29/6,450.48
  6. Step 6: Final answer
    x = 4,487.48

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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.