Home / 1,024.15-1,404.13-1,005.70

Finding the Fourth Proportional to 1,024.15, 1,404.13 and 1,005.70

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Solution

The fourth proportional to 1,024.15, 1,404.13 and 1,005.70 is: 1,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.15 : 1,404.13 = 1,005.70 : x
  2. Step 2: Convert to fraction form
    1,024.15/1,404.13 = 1,005.70/x
  3. Step 3: Cross multiply
    1,024.15x = 1,404.13 × 1,005.70
  4. Step 4: Simplify right side
    1,024.15x = 1,412,133.54
  5. Step 5: Solve for x
    x = 1,412,133.54/1,024.15
  6. Step 6: Final answer
    x = 1,378.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.