Home / 4,377.80-6,566.70-2,190.80

Finding the Fourth Proportional to 4,377.80, 6,566.70 and 2,190.80

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Solution

The fourth proportional to 4,377.80, 6,566.70 and 2,190.80 is: 3,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,377.80 : 6,566.70 = 2,190.80 : x
  2. Step 2: Convert to fraction form
    4,377.80/6,566.70 = 2,190.80/x
  3. Step 3: Cross multiply
    4,377.80x = 6,566.70 × 2,190.80
  4. Step 4: Simplify right side
    4,377.80x = 14,386,326.36
  5. Step 5: Solve for x
    x = 14,386,326.36/4,377.80
  6. Step 6: Final answer
    x = 3,286.20

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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.