Home / 6,310.80-9,455.40-4,118.40

Finding the Fourth Proportional to 6,310.80, 9,455.40 and 4,118.40

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Solution

The fourth proportional to 6,310.80, 9,455.40 and 4,118.40 is: 6,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.80 : 9,455.40 = 4,118.40 : x
  2. Step 2: Convert to fraction form
    6,310.80/9,455.40 = 4,118.40/x
  3. Step 3: Cross multiply
    6,310.80x = 9,455.40 × 4,118.40
  4. Step 4: Simplify right side
    6,310.80x = 38,941,119.36
  5. Step 5: Solve for x
    x = 38,941,119.36/6,310.80
  6. Step 6: Final answer
    x = 6,170.55

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1.5x scale

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.