Home / 2,421.45-3,636.23-1,589.94

Finding the Fourth Proportional to 2,421.45, 3,636.23 and 1,589.94

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Solution

The fourth proportional to 2,421.45, 3,636.23 and 1,589.94 is: 2,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.45 : 3,636.23 = 1,589.94 : x
  2. Step 2: Convert to fraction form
    2,421.45/3,636.23 = 1,589.94/x
  3. Step 3: Cross multiply
    2,421.45x = 3,636.23 × 1,589.94
  4. Step 4: Simplify right side
    2,421.45x = 5,781,379.58
  5. Step 5: Solve for x
    x = 5,781,379.58/2,421.45
  6. Step 6: Final answer
    x = 2,387.57

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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.