Home / 4,678.32-7,017.48-1,391.41

Finding the Fourth Proportional to 4,678.32, 7,017.48 and 1,391.41

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Solution

The fourth proportional to 4,678.32, 7,017.48 and 1,391.41 is: 2,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.32 : 7,017.48 = 1,391.41 : x
  2. Step 2: Convert to fraction form
    4,678.32/7,017.48 = 1,391.41/x
  3. Step 3: Cross multiply
    4,678.32x = 7,017.48 × 1,391.41
  4. Step 4: Simplify right side
    4,678.32x = 9,764,149.80
  5. Step 5: Solve for x
    x = 9,764,149.80/4,678.32
  6. Step 6: Final answer
    x = 2,087.11

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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.