Home / 1,872.18-2,585.79-1,429.11

Finding the Fourth Proportional to 1,872.18, 2,585.79 and 1,429.11

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Solution

The fourth proportional to 1,872.18, 2,585.79 and 1,429.11 is: 1,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.18 : 2,585.79 = 1,429.11 : x
  2. Step 2: Convert to fraction form
    1,872.18/2,585.79 = 1,429.11/x
  3. Step 3: Cross multiply
    1,872.18x = 2,585.79 × 1,429.11
  4. Step 4: Simplify right side
    1,872.18x = 3,695,378.35
  5. Step 5: Solve for x
    x = 3,695,378.35/1,872.18
  6. Step 6: Final answer
    x = 1,973.84

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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.