Home / 6,019.80-9,029.70-4,387.80

Finding the Fourth Proportional to 6,019.80, 9,029.70 and 4,387.80

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Solution

The fourth proportional to 6,019.80, 9,029.70 and 4,387.80 is: 6,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,019.80 : 9,029.70 = 4,387.80 : x
  2. Step 2: Convert to fraction form
    6,019.80/9,029.70 = 4,387.80/x
  3. Step 3: Cross multiply
    6,019.80x = 9,029.70 × 4,387.80
  4. Step 4: Simplify right side
    6,019.80x = 39,620,517.66
  5. Step 5: Solve for x
    x = 39,620,517.66/6,019.80
  6. Step 6: Final answer
    x = 6,581.70

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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.