Home / 3,624.90-5,439.18-1,678.50

Finding the Fourth Proportional to 3,624.90, 5,439.18 and 1,678.50

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Solution

The fourth proportional to 3,624.90, 5,439.18 and 1,678.50 is: 2,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.90 : 5,439.18 = 1,678.50 : x
  2. Step 2: Convert to fraction form
    3,624.90/5,439.18 = 1,678.50/x
  3. Step 3: Cross multiply
    3,624.90x = 5,439.18 × 1,678.50
  4. Step 4: Simplify right side
    3,624.90x = 9,129,663.63
  5. Step 5: Solve for x
    x = 9,129,663.63/3,624.90
  6. Step 6: Final answer
    x = 2,518.60

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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.