Home / 2,431.80-3,642.23-1,455.86

Finding the Fourth Proportional to 2,431.80, 3,642.23 and 1,455.86

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Solution

The fourth proportional to 2,431.80, 3,642.23 and 1,455.86 is: 2,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.80 : 3,642.23 = 1,455.86 : x
  2. Step 2: Convert to fraction form
    2,431.80/3,642.23 = 1,455.86/x
  3. Step 3: Cross multiply
    2,431.80x = 3,642.23 × 1,455.86
  4. Step 4: Simplify right side
    2,431.80x = 5,302,551.48
  5. Step 5: Solve for x
    x = 5,302,551.48/2,431.80
  6. Step 6: Final answer
    x = 2,180.50

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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.