Home / 5,447.37-7,521.60-4,186.42

Finding the Fourth Proportional to 5,447.37, 7,521.60 and 4,186.42

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Solution

The fourth proportional to 5,447.37, 7,521.60 and 4,186.42 is: 5,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.37 : 7,521.60 = 4,186.42 : x
  2. Step 2: Convert to fraction form
    5,447.37/7,521.60 = 4,186.42/x
  3. Step 3: Cross multiply
    5,447.37x = 7,521.60 × 4,186.42
  4. Step 4: Simplify right side
    5,447.37x = 31,488,576.67
  5. Step 5: Solve for x
    x = 31,488,576.67/5,447.37
  6. Step 6: Final answer
    x = 5,780.51

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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.