Home / 1,424.40-2,133.19-1,011.61

Finding the Fourth Proportional to 1,424.40, 2,133.19 and 1,011.61

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Solution

The fourth proportional to 1,424.40, 2,133.19 and 1,011.61 is: 1,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.40 : 2,133.19 = 1,011.61 : x
  2. Step 2: Convert to fraction form
    1,424.40/2,133.19 = 1,011.61/x
  3. Step 3: Cross multiply
    1,424.40x = 2,133.19 × 1,011.61
  4. Step 4: Simplify right side
    1,424.40x = 2,157,942.58
  5. Step 5: Solve for x
    x = 2,157,942.58/1,424.40
  6. Step 6: Final answer
    x = 1,514.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.