Home / 1,010.02-1,395.26-961.42

Finding the Fourth Proportional to 1,010.02, 1,395.26 and 961.42

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Solution

The fourth proportional to 1,010.02, 1,395.26 and 961.42 is: 1,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.02 : 1,395.26 = 961.42 : x
  2. Step 2: Convert to fraction form
    1,010.02/1,395.26 = 961.42/x
  3. Step 3: Cross multiply
    1,010.02x = 1,395.26 × 961.42
  4. Step 4: Simplify right side
    1,010.02x = 1,341,430.87
  5. Step 5: Solve for x
    x = 1,341,430.87/1,010.02
  6. Step 6: Final answer
    x = 1,328.12

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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.