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Finding the Fourth Proportional to 5,390.22, 7,437.22 and 3,150.97

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Solution

The fourth proportional to 5,390.22, 7,437.22 and 3,150.97 is: 4,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.22 : 7,437.22 = 3,150.97 : x
  2. Step 2: Convert to fraction form
    5,390.22/7,437.22 = 3,150.97/x
  3. Step 3: Cross multiply
    5,390.22x = 7,437.22 × 3,150.97
  4. Step 4: Simplify right side
    5,390.22x = 23,434,457.10
  5. Step 5: Solve for x
    x = 23,434,457.10/5,390.22
  6. Step 6: Final answer
    x = 4,347.59

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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.