Home / 1,871.23-2,582.09-1,085.12

Finding the Fourth Proportional to 1,871.23, 2,582.09 and 1,085.12

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Solution

The fourth proportional to 1,871.23, 2,582.09 and 1,085.12 is: 1,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.23 : 2,582.09 = 1,085.12 : x
  2. Step 2: Convert to fraction form
    1,871.23/2,582.09 = 1,085.12/x
  3. Step 3: Cross multiply
    1,871.23x = 2,582.09 × 1,085.12
  4. Step 4: Simplify right side
    1,871.23x = 2,801,882.60
  5. Step 5: Solve for x
    x = 2,801,882.60/1,871.23
  6. Step 6: Final answer
    x = 1,497.35

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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.