Home / 7,835.32-11,753.44-2,838.78

Finding the Fourth Proportional to 7,835.32, 11,753.44 and 2,838.78

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Solution

The fourth proportional to 7,835.32, 11,753.44 and 2,838.78 is: 4,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.32 : 11,753.44 = 2,838.78 : x
  2. Step 2: Convert to fraction form
    7,835.32/11,753.44 = 2,838.78/x
  3. Step 3: Cross multiply
    7,835.32x = 11,753.44 × 2,838.78
  4. Step 4: Simplify right side
    7,835.32x = 33,365,430.40
  5. Step 5: Solve for x
    x = 33,365,430.40/7,835.32
  6. Step 6: Final answer
    x = 4,258.34

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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.