Home / 1,871.39-2,583.03-1,085.28

Finding the Fourth Proportional to 1,871.39, 2,583.03 and 1,085.28

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Solution

The fourth proportional to 1,871.39, 2,583.03 and 1,085.28 is: 1,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.39 : 2,583.03 = 1,085.28 : x
  2. Step 2: Convert to fraction form
    1,871.39/2,583.03 = 1,085.28/x
  3. Step 3: Cross multiply
    1,871.39x = 2,583.03 × 1,085.28
  4. Step 4: Simplify right side
    1,871.39x = 2,803,310.80
  5. Step 5: Solve for x
    x = 2,803,310.80/1,871.39
  6. Step 6: Final answer
    x = 1,497.99

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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.