Home / 6,419.30-8,859.77-4,153.43

Finding the Fourth Proportional to 6,419.30, 8,859.77 and 4,153.43

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Solution

The fourth proportional to 6,419.30, 8,859.77 and 4,153.43 is: 5,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.30 : 8,859.77 = 4,153.43 : x
  2. Step 2: Convert to fraction form
    6,419.30/8,859.77 = 4,153.43/x
  3. Step 3: Cross multiply
    6,419.30x = 8,859.77 × 4,153.43
  4. Step 4: Simplify right side
    6,419.30x = 36,798,369.45
  5. Step 5: Solve for x
    x = 36,798,369.45/6,419.30
  6. Step 6: Final answer
    x = 5,732.46

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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.