Home / 1,429.24-2,145.70-969.06

Finding the Fourth Proportional to 1,429.24, 2,145.70 and 969.06

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Solution

The fourth proportional to 1,429.24, 2,145.70 and 969.06 is: 1,454.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.24 : 2,145.70 = 969.06 : x
  2. Step 2: Convert to fraction form
    1,429.24/2,145.70 = 969.06/x
  3. Step 3: Cross multiply
    1,429.24x = 2,145.70 × 969.06
  4. Step 4: Simplify right side
    1,429.24x = 2,079,312.04
  5. Step 5: Solve for x
    x = 2,079,312.04/1,429.24
  6. Step 6: Final answer
    x = 1,454.84

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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.