Home / 4,750.37-7,125.55-1,287.62

Finding the Fourth Proportional to 4,750.37, 7,125.55 and 1,287.62

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Solution

The fourth proportional to 4,750.37, 7,125.55 and 1,287.62 is: 1,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.37 : 7,125.55 = 1,287.62 : x
  2. Step 2: Convert to fraction form
    4,750.37/7,125.55 = 1,287.62/x
  3. Step 3: Cross multiply
    4,750.37x = 7,125.55 × 1,287.62
  4. Step 4: Simplify right side
    4,750.37x = 9,174,963.97
  5. Step 5: Solve for x
    x = 9,174,963.97/4,750.37
  6. Step 6: Final answer
    x = 1,931.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.