Home / 3,611.80-5,417.70-1,763.20

Finding the Fourth Proportional to 3,611.80, 5,417.70 and 1,763.20

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Solution

The fourth proportional to 3,611.80, 5,417.70 and 1,763.20 is: 2,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.80 : 5,417.70 = 1,763.20 : x
  2. Step 2: Convert to fraction form
    3,611.80/5,417.70 = 1,763.20/x
  3. Step 3: Cross multiply
    3,611.80x = 5,417.70 × 1,763.20
  4. Step 4: Simplify right side
    3,611.80x = 9,552,488.64
  5. Step 5: Solve for x
    x = 9,552,488.64/3,611.80
  6. Step 6: Final answer
    x = 2,644.80

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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.