Home / 1,010.67-1,391.36-964.23

Finding the Fourth Proportional to 1,010.67, 1,391.36 and 964.23

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Solution

The fourth proportional to 1,010.67, 1,391.36 and 964.23 is: 1,327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.67 : 1,391.36 = 964.23 : x
  2. Step 2: Convert to fraction form
    1,010.67/1,391.36 = 964.23/x
  3. Step 3: Cross multiply
    1,010.67x = 1,391.36 × 964.23
  4. Step 4: Simplify right side
    1,010.67x = 1,341,586.23
  5. Step 5: Solve for x
    x = 1,341,586.23/1,010.67
  6. Step 6: Final answer
    x = 1,327.42

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1.5x scale

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.