Home / 1,035.41-1,424.67-1,010.80

Finding the Fourth Proportional to 1,035.41, 1,424.67 and 1,010.80

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Solution

The fourth proportional to 1,035.41, 1,424.67 and 1,010.80 is: 1,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.41 : 1,424.67 = 1,010.80 : x
  2. Step 2: Convert to fraction form
    1,035.41/1,424.67 = 1,010.80/x
  3. Step 3: Cross multiply
    1,035.41x = 1,424.67 × 1,010.80
  4. Step 4: Simplify right side
    1,035.41x = 1,440,049.31
  5. Step 5: Solve for x
    x = 1,440,049.31/1,035.41
  6. Step 6: Final answer
    x = 1,390.80

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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.