Home / 1,151.39-1,720.37-1,010.75

Finding the Fourth Proportional to 1,151.39, 1,720.37 and 1,010.75

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Solution

The fourth proportional to 1,151.39, 1,720.37 and 1,010.75 is: 1,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.39 : 1,720.37 = 1,010.75 : x
  2. Step 2: Convert to fraction form
    1,151.39/1,720.37 = 1,010.75/x
  3. Step 3: Cross multiply
    1,151.39x = 1,720.37 × 1,010.75
  4. Step 4: Simplify right side
    1,151.39x = 1,738,863.22
  5. Step 5: Solve for x
    x = 1,738,863.22/1,151.39
  6. Step 6: Final answer
    x = 1,510.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.