Home / 2,179.19-3,005.24-1,681.04

Finding the Fourth Proportional to 2,179.19, 3,005.24 and 1,681.04

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Solution

The fourth proportional to 2,179.19, 3,005.24 and 1,681.04 is: 2,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.19 : 3,005.24 = 1,681.04 : x
  2. Step 2: Convert to fraction form
    2,179.19/3,005.24 = 1,681.04/x
  3. Step 3: Cross multiply
    2,179.19x = 3,005.24 × 1,681.04
  4. Step 4: Simplify right side
    2,179.19x = 5,051,928.65
  5. Step 5: Solve for x
    x = 5,051,928.65/2,179.19
  6. Step 6: Final answer
    x = 2,318.26

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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.