Home / 1,871.19-2,582.04-1,085.39

Finding the Fourth Proportional to 1,871.19, 2,582.04 and 1,085.39

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Solution

The fourth proportional to 1,871.19, 2,582.04 and 1,085.39 is: 1,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.19 : 2,582.04 = 1,085.39 : x
  2. Step 2: Convert to fraction form
    1,871.19/2,582.04 = 1,085.39/x
  3. Step 3: Cross multiply
    1,871.19x = 2,582.04 × 1,085.39
  4. Step 4: Simplify right side
    1,871.19x = 2,802,520.40
  5. Step 5: Solve for x
    x = 2,802,520.40/1,871.19
  6. Step 6: Final answer
    x = 1,497.72

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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.