Home / 7,274.28-10,038.60-4,129.86

Finding the Fourth Proportional to 7,274.28, 10,038.60 and 4,129.86

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Solution

The fourth proportional to 7,274.28, 10,038.60 and 4,129.86 is: 5,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.28 : 10,038.60 = 4,129.86 : x
  2. Step 2: Convert to fraction form
    7,274.28/10,038.60 = 4,129.86/x
  3. Step 3: Cross multiply
    7,274.28x = 10,038.60 × 4,129.86
  4. Step 4: Simplify right side
    7,274.28x = 41,458,012.60
  5. Step 5: Solve for x
    x = 41,458,012.60/7,274.28
  6. Step 6: Final answer
    x = 5,699.26

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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.