Home / 1,871.17-2,582.45-1,173.49

Finding the Fourth Proportional to 1,871.17, 2,582.45 and 1,173.49

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Solution

The fourth proportional to 1,871.17, 2,582.45 and 1,173.49 is: 1,619.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.17 : 2,582.45 = 1,173.49 : x
  2. Step 2: Convert to fraction form
    1,871.17/2,582.45 = 1,173.49/x
  3. Step 3: Cross multiply
    1,871.17x = 2,582.45 × 1,173.49
  4. Step 4: Simplify right side
    1,871.17x = 3,030,471.33
  5. Step 5: Solve for x
    x = 3,030,471.33/1,871.17
  6. Step 6: Final answer
    x = 1,619.56

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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.