Home / 5,438.64-7,505.03-3,080.63

Finding the Fourth Proportional to 5,438.64, 7,505.03 and 3,080.63

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Solution

The fourth proportional to 5,438.64, 7,505.03 and 3,080.63 is: 4,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.64 : 7,505.03 = 3,080.63 : x
  2. Step 2: Convert to fraction form
    5,438.64/7,505.03 = 3,080.63/x
  3. Step 3: Cross multiply
    5,438.64x = 7,505.03 × 3,080.63
  4. Step 4: Simplify right side
    5,438.64x = 23,120,167.64
  5. Step 5: Solve for x
    x = 23,120,167.64/5,438.64
  6. Step 6: Final answer
    x = 4,251.09

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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.