Home / 5,452.07-8,178.50-1,556.78

Finding the Fourth Proportional to 5,452.07, 8,178.50 and 1,556.78

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Solution

The fourth proportional to 5,452.07, 8,178.50 and 1,556.78 is: 2,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.07 : 8,178.50 = 1,556.78 : x
  2. Step 2: Convert to fraction form
    5,452.07/8,178.50 = 1,556.78/x
  3. Step 3: Cross multiply
    5,452.07x = 8,178.50 × 1,556.78
  4. Step 4: Simplify right side
    5,452.07x = 12,732,076.55
  5. Step 5: Solve for x
    x = 12,732,076.55/5,452.07
  6. Step 6: Final answer
    x = 2,335.28

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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.