Home / 3,061.80-4,226.38-1,803.06

Finding the Fourth Proportional to 3,061.80, 4,226.38 and 1,803.06

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Solution

The fourth proportional to 3,061.80, 4,226.38 and 1,803.06 is: 2,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.80 : 4,226.38 = 1,803.06 : x
  2. Step 2: Convert to fraction form
    3,061.80/4,226.38 = 1,803.06/x
  3. Step 3: Cross multiply
    3,061.80x = 4,226.38 × 1,803.06
  4. Step 4: Simplify right side
    3,061.80x = 7,620,412.22
  5. Step 5: Solve for x
    x = 7,620,412.22/3,061.80
  6. Step 6: Final answer
    x = 2,488.87

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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.