Home / 1,871.48-2,582.56-1,125.85

Finding the Fourth Proportional to 1,871.48, 2,582.56 and 1,125.85

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Solution

The fourth proportional to 1,871.48, 2,582.56 and 1,125.85 is: 1,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.48 : 2,582.56 = 1,125.85 : x
  2. Step 2: Convert to fraction form
    1,871.48/2,582.56 = 1,125.85/x
  3. Step 3: Cross multiply
    1,871.48x = 2,582.56 × 1,125.85
  4. Step 4: Simplify right side
    1,871.48x = 2,907,575.18
  5. Step 5: Solve for x
    x = 2,907,575.18/1,871.48
  6. Step 6: Final answer
    x = 1,553.62

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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.