Home / 3,586.30-5,379.55-1,121.06

Finding the Fourth Proportional to 3,586.30, 5,379.55 and 1,121.06

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Solution

The fourth proportional to 3,586.30, 5,379.55 and 1,121.06 is: 1,681.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.30 : 5,379.55 = 1,121.06 : x
  2. Step 2: Convert to fraction form
    3,586.30/5,379.55 = 1,121.06/x
  3. Step 3: Cross multiply
    3,586.30x = 5,379.55 × 1,121.06
  4. Step 4: Simplify right side
    3,586.30x = 6,030,808.97
  5. Step 5: Solve for x
    x = 6,030,808.97/3,586.30
  6. Step 6: Final answer
    x = 1,681.63

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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.