Home / 2,412.34-3,620.74-1,489.70

Finding the Fourth Proportional to 2,412.34, 3,620.74 and 1,489.70

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Solution

The fourth proportional to 2,412.34, 3,620.74 and 1,489.70 is: 2,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.34 : 3,620.74 = 1,489.70 : x
  2. Step 2: Convert to fraction form
    2,412.34/3,620.74 = 1,489.70/x
  3. Step 3: Cross multiply
    2,412.34x = 3,620.74 × 1,489.70
  4. Step 4: Simplify right side
    2,412.34x = 5,393,821.71
  5. Step 5: Solve for x
    x = 5,393,821.71/2,412.34
  6. Step 6: Final answer
    x = 2,235.93

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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.