Home / 3,765.85-5,625.86-2,438.79

Finding the Fourth Proportional to 3,765.85, 5,625.86 and 2,438.79

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Solution

The fourth proportional to 3,765.85, 5,625.86 and 2,438.79 is: 3,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.85 : 5,625.86 = 2,438.79 : x
  2. Step 2: Convert to fraction form
    3,765.85/5,625.86 = 2,438.79/x
  3. Step 3: Cross multiply
    3,765.85x = 5,625.86 × 2,438.79
  4. Step 4: Simplify right side
    3,765.85x = 13,720,291.11
  5. Step 5: Solve for x
    x = 13,720,291.11/3,765.85
  6. Step 6: Final answer
    x = 3,643.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.