Home / 3,624.65-5,439.69-1,678.22

Finding the Fourth Proportional to 3,624.65, 5,439.69 and 1,678.22

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Solution

The fourth proportional to 3,624.65, 5,439.69 and 1,678.22 is: 2,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.65 : 5,439.69 = 1,678.22 : x
  2. Step 2: Convert to fraction form
    3,624.65/5,439.69 = 1,678.22/x
  3. Step 3: Cross multiply
    3,624.65x = 5,439.69 × 1,678.22
  4. Step 4: Simplify right side
    3,624.65x = 9,128,996.55
  5. Step 5: Solve for x
    x = 9,128,996.55/3,624.65
  6. Step 6: Final answer
    x = 2,518.59

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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.