Home / 5,421.63-7,481.85-2,937.63

Finding the Fourth Proportional to 5,421.63, 7,481.85 and 2,937.63

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Solution

The fourth proportional to 5,421.63, 7,481.85 and 2,937.63 is: 4,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.63 : 7,481.85 = 2,937.63 : x
  2. Step 2: Convert to fraction form
    5,421.63/7,481.85 = 2,937.63/x
  3. Step 3: Cross multiply
    5,421.63x = 7,481.85 × 2,937.63
  4. Step 4: Simplify right side
    5,421.63x = 21,978,907.02
  5. Step 5: Solve for x
    x = 21,978,907.02/5,421.63
  6. Step 6: Final answer
    x = 4,053.93

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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.