Home / 3,681.04-5,518.21-1,339.39

Finding the Fourth Proportional to 3,681.04, 5,518.21 and 1,339.39

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Solution

The fourth proportional to 3,681.04, 5,518.21 and 1,339.39 is: 2,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.04 : 5,518.21 = 1,339.39 : x
  2. Step 2: Convert to fraction form
    3,681.04/5,518.21 = 1,339.39/x
  3. Step 3: Cross multiply
    3,681.04x = 5,518.21 × 1,339.39
  4. Step 4: Simplify right side
    3,681.04x = 7,391,007.70
  5. Step 5: Solve for x
    x = 7,391,007.70/3,681.04
  6. Step 6: Final answer
    x = 2,007.86

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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.