Home / 3,760.68-5,636.40-1,678.32

Finding the Fourth Proportional to 3,760.68, 5,636.40 and 1,678.32

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Solution

The fourth proportional to 3,760.68, 5,636.40 and 1,678.32 is: 2,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.68 : 5,636.40 = 1,678.32 : x
  2. Step 2: Convert to fraction form
    3,760.68/5,636.40 = 1,678.32/x
  3. Step 3: Cross multiply
    3,760.68x = 5,636.40 × 1,678.32
  4. Step 4: Simplify right side
    3,760.68x = 9,459,682.85
  5. Step 5: Solve for x
    x = 9,459,682.85/3,760.68
  6. Step 6: Final answer
    x = 2,515.42

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1.5x scale

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.