Home / 4,118.85-5,682.56-2,859.57

Finding the Fourth Proportional to 4,118.85, 5,682.56 and 2,859.57

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Solution

The fourth proportional to 4,118.85, 5,682.56 and 2,859.57 is: 3,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.85 : 5,682.56 = 2,859.57 : x
  2. Step 2: Convert to fraction form
    4,118.85/5,682.56 = 2,859.57/x
  3. Step 3: Cross multiply
    4,118.85x = 5,682.56 × 2,859.57
  4. Step 4: Simplify right side
    4,118.85x = 16,249,678.10
  5. Step 5: Solve for x
    x = 16,249,678.10/4,118.85
  6. Step 6: Final answer
    x = 3,945.20

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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.