Home / 2,431.74-3,645-1,045.68

Finding the Fourth Proportional to 2,431.74, 3,645 and 1,045.68

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Solution

The fourth proportional to 2,431.74, 3,645 and 1,045.68 is: 1,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.74 : 3,645 = 1,045.68 : x
  2. Step 2: Convert to fraction form
    2,431.74/3,645 = 1,045.68/x
  3. Step 3: Cross multiply
    2,431.74x = 3,645 × 1,045.68
  4. Step 4: Simplify right side
    2,431.74x = 3,811,503.60
  5. Step 5: Solve for x
    x = 3,811,503.60/2,431.74
  6. Step 6: Final answer
    x = 1,567.40

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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.