Home / 1,871.24-2,582.10-1,085

Finding the Fourth Proportional to 1,871.24, 2,582.10 and 1,085

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Solution

The fourth proportional to 1,871.24, 2,582.10 and 1,085 is: 1,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.24 : 2,582.10 = 1,085 : x
  2. Step 2: Convert to fraction form
    1,871.24/2,582.10 = 1,085/x
  3. Step 3: Cross multiply
    1,871.24x = 2,582.10 × 1,085
  4. Step 4: Simplify right side
    1,871.24x = 2,801,578.50
  5. Step 5: Solve for x
    x = 2,801,578.50/1,871.24
  6. Step 6: Final answer
    x = 1,497.18

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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.