Home / 7,738.90-11,601.28-2,807.44

Finding the Fourth Proportional to 7,738.90, 11,601.28 and 2,807.44

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Solution

The fourth proportional to 7,738.90, 11,601.28 and 2,807.44 is: 4,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.90 : 11,601.28 = 2,807.44 : x
  2. Step 2: Convert to fraction form
    7,738.90/11,601.28 = 2,807.44/x
  3. Step 3: Cross multiply
    7,738.90x = 11,601.28 × 2,807.44
  4. Step 4: Simplify right side
    7,738.90x = 32,569,897.52
  5. Step 5: Solve for x
    x = 32,569,897.52/7,738.90
  6. Step 6: Final answer
    x = 4,208.60

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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.