Home / 6,777.60-9,353.44-4,258.78

Finding the Fourth Proportional to 6,777.60, 9,353.44 and 4,258.78

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Solution

The fourth proportional to 6,777.60, 9,353.44 and 4,258.78 is: 5,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777.60 : 9,353.44 = 4,258.78 : x
  2. Step 2: Convert to fraction form
    6,777.60/9,353.44 = 4,258.78/x
  3. Step 3: Cross multiply
    6,777.60x = 9,353.44 × 4,258.78
  4. Step 4: Simplify right side
    6,777.60x = 39,834,196.44
  5. Step 5: Solve for x
    x = 39,834,196.44/6,777.60
  6. Step 6: Final answer
    x = 5,877.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.