Home / 1,040.18-1,426.14-1,021.82

Finding the Fourth Proportional to 1,040.18, 1,426.14 and 1,021.82

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Solution

The fourth proportional to 1,040.18, 1,426.14 and 1,021.82 is: 1,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.18 : 1,426.14 = 1,021.82 : x
  2. Step 2: Convert to fraction form
    1,040.18/1,426.14 = 1,021.82/x
  3. Step 3: Cross multiply
    1,040.18x = 1,426.14 × 1,021.82
  4. Step 4: Simplify right side
    1,040.18x = 1,457,251.24
  5. Step 5: Solve for x
    x = 1,457,251.24/1,040.18
  6. Step 6: Final answer
    x = 1,400.97

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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.