Home / 3,740.64-5,610.28-1,107.60

Finding the Fourth Proportional to 3,740.64, 5,610.28 and 1,107.60

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Solution

The fourth proportional to 3,740.64, 5,610.28 and 1,107.60 is: 1,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.64 : 5,610.28 = 1,107.60 : x
  2. Step 2: Convert to fraction form
    3,740.64/5,610.28 = 1,107.60/x
  3. Step 3: Cross multiply
    3,740.64x = 5,610.28 × 1,107.60
  4. Step 4: Simplify right side
    3,740.64x = 6,213,946.13
  5. Step 5: Solve for x
    x = 6,213,946.13/3,740.64
  6. Step 6: Final answer
    x = 1,661.20

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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.