Home / 5,255.42-7,880.77-1,556.96

Finding the Fourth Proportional to 5,255.42, 7,880.77 and 1,556.96

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Solution

The fourth proportional to 5,255.42, 7,880.77 and 1,556.96 is: 2,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.42 : 7,880.77 = 1,556.96 : x
  2. Step 2: Convert to fraction form
    5,255.42/7,880.77 = 1,556.96/x
  3. Step 3: Cross multiply
    5,255.42x = 7,880.77 × 1,556.96
  4. Step 4: Simplify right side
    5,255.42x = 12,270,043.66
  5. Step 5: Solve for x
    x = 12,270,043.66/5,255.42
  6. Step 6: Final answer
    x = 2,334.74

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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.