Home / 1,871.79-2,583.36-1,116

Finding the Fourth Proportional to 1,871.79, 2,583.36 and 1,116

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Solution

The fourth proportional to 1,871.79, 2,583.36 and 1,116 is: 1,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.79 : 2,583.36 = 1,116 : x
  2. Step 2: Convert to fraction form
    1,871.79/2,583.36 = 1,116/x
  3. Step 3: Cross multiply
    1,871.79x = 2,583.36 × 1,116
  4. Step 4: Simplify right side
    1,871.79x = 2,883,029.76
  5. Step 5: Solve for x
    x = 2,883,029.76/1,871.79
  6. Step 6: Final answer
    x = 1,540.25

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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.