Home / 3,297.90-4,946.85-2,990.10

Finding the Fourth Proportional to 3,297.90, 4,946.85 and 2,990.10

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Solution

The fourth proportional to 3,297.90, 4,946.85 and 2,990.10 is: 4,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.90 : 4,946.85 = 2,990.10 : x
  2. Step 2: Convert to fraction form
    3,297.90/4,946.85 = 2,990.10/x
  3. Step 3: Cross multiply
    3,297.90x = 4,946.85 × 2,990.10
  4. Step 4: Simplify right side
    3,297.90x = 14,791,576.19
  5. Step 5: Solve for x
    x = 14,791,576.19/3,297.90
  6. Step 6: Final answer
    x = 4,485.15

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Similar ratio
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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.