Home / 7,128.04-9,836.76-4,144

Finding the Fourth Proportional to 7,128.04, 9,836.76 and 4,144

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Solution

The fourth proportional to 7,128.04, 9,836.76 and 4,144 is: 5,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.04 : 9,836.76 = 4,144 : x
  2. Step 2: Convert to fraction form
    7,128.04/9,836.76 = 4,144/x
  3. Step 3: Cross multiply
    7,128.04x = 9,836.76 × 4,144
  4. Step 4: Simplify right side
    7,128.04x = 40,763,533.44
  5. Step 5: Solve for x
    x = 40,763,533.44/7,128.04
  6. Step 6: Final answer
    x = 5,718.76

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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.