Home / 1,582.29-2,178.90-1,416.42

Finding the Fourth Proportional to 1,582.29, 2,178.90 and 1,416.42

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Solution

The fourth proportional to 1,582.29, 2,178.90 and 1,416.42 is: 1,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.29 : 2,178.90 = 1,416.42 : x
  2. Step 2: Convert to fraction form
    1,582.29/2,178.90 = 1,416.42/x
  3. Step 3: Cross multiply
    1,582.29x = 2,178.90 × 1,416.42
  4. Step 4: Simplify right side
    1,582.29x = 3,086,237.54
  5. Step 5: Solve for x
    x = 3,086,237.54/1,582.29
  6. Step 6: Final answer
    x = 1,950.49

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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.