Home / 5,925.78-8,889.48-2,638.80

Finding the Fourth Proportional to 5,925.78, 8,889.48 and 2,638.80

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Solution

The fourth proportional to 5,925.78, 8,889.48 and 2,638.80 is: 3,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,925.78 : 8,889.48 = 2,638.80 : x
  2. Step 2: Convert to fraction form
    5,925.78/8,889.48 = 2,638.80/x
  3. Step 3: Cross multiply
    5,925.78x = 8,889.48 × 2,638.80
  4. Step 4: Simplify right side
    5,925.78x = 23,457,559.82
  5. Step 5: Solve for x
    x = 23,457,559.82/5,925.78
  6. Step 6: Final answer
    x = 3,958.56

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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.