Home / 5,438.10-7,504.56-3,080.28

Finding the Fourth Proportional to 5,438.10, 7,504.56 and 3,080.28

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Solution

The fourth proportional to 5,438.10, 7,504.56 and 3,080.28 is: 4,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.10 : 7,504.56 = 3,080.28 : x
  2. Step 2: Convert to fraction form
    5,438.10/7,504.56 = 3,080.28/x
  3. Step 3: Cross multiply
    5,438.10x = 7,504.56 × 3,080.28
  4. Step 4: Simplify right side
    5,438.10x = 23,116,146.08
  5. Step 5: Solve for x
    x = 23,116,146.08/5,438.10
  6. Step 6: Final answer
    x = 4,250.78

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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.