Home / 4,915.44-7,369.92-1,990.32

Finding the Fourth Proportional to 4,915.44, 7,369.92 and 1,990.32

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Solution

The fourth proportional to 4,915.44, 7,369.92 and 1,990.32 is: 2,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.44 : 7,369.92 = 1,990.32 : x
  2. Step 2: Convert to fraction form
    4,915.44/7,369.92 = 1,990.32/x
  3. Step 3: Cross multiply
    4,915.44x = 7,369.92 × 1,990.32
  4. Step 4: Simplify right side
    4,915.44x = 14,668,499.17
  5. Step 5: Solve for x
    x = 14,668,499.17/4,915.44
  6. Step 6: Final answer
    x = 2,984.17

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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.