Home / 2,146.65-3,219.30-1,323.69

Finding the Fourth Proportional to 2,146.65, 3,219.30 and 1,323.69

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Solution

The fourth proportional to 2,146.65, 3,219.30 and 1,323.69 is: 1,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.65 : 3,219.30 = 1,323.69 : x
  2. Step 2: Convert to fraction form
    2,146.65/3,219.30 = 1,323.69/x
  3. Step 3: Cross multiply
    2,146.65x = 3,219.30 × 1,323.69
  4. Step 4: Simplify right side
    2,146.65x = 4,261,355.22
  5. Step 5: Solve for x
    x = 4,261,355.22/2,146.65
  6. Step 6: Final answer
    x = 1,985.12

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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.