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Finding the Fourth Proportional to 5,255.04, 7,879.80 and 1,556.82

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Solution

The fourth proportional to 5,255.04, 7,879.80 and 1,556.82 is: 2,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.04 : 7,879.80 = 1,556.82 : x
  2. Step 2: Convert to fraction form
    5,255.04/7,879.80 = 1,556.82/x
  3. Step 3: Cross multiply
    5,255.04x = 7,879.80 × 1,556.82
  4. Step 4: Simplify right side
    5,255.04x = 12,267,430.24
  5. Step 5: Solve for x
    x = 12,267,430.24/5,255.04
  6. Step 6: Final answer
    x = 2,334.41

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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.