Home / 3,645.57-5,030.10-2,318.79

Finding the Fourth Proportional to 3,645.57, 5,030.10 and 2,318.79

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Solution

The fourth proportional to 3,645.57, 5,030.10 and 2,318.79 is: 3,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.57 : 5,030.10 = 2,318.79 : x
  2. Step 2: Convert to fraction form
    3,645.57/5,030.10 = 2,318.79/x
  3. Step 3: Cross multiply
    3,645.57x = 5,030.10 × 2,318.79
  4. Step 4: Simplify right side
    3,645.57x = 11,663,745.58
  5. Step 5: Solve for x
    x = 11,663,745.58/3,645.57
  6. Step 6: Final answer
    x = 3,199.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.