Home / 5,405.38-7,458.37-3,308.02

Finding the Fourth Proportional to 5,405.38, 7,458.37 and 3,308.02

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Solution

The fourth proportional to 5,405.38, 7,458.37 and 3,308.02 is: 4,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.38 : 7,458.37 = 3,308.02 : x
  2. Step 2: Convert to fraction form
    5,405.38/7,458.37 = 3,308.02/x
  3. Step 3: Cross multiply
    5,405.38x = 7,458.37 × 3,308.02
  4. Step 4: Simplify right side
    5,405.38x = 24,672,437.13
  5. Step 5: Solve for x
    x = 24,672,437.13/5,405.38
  6. Step 6: Final answer
    x = 4,564.42

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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.