Home / 1,163.14-1,603.29-1,140.10

Finding the Fourth Proportional to 1,163.14, 1,603.29 and 1,140.10

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Solution

The fourth proportional to 1,163.14, 1,603.29 and 1,140.10 is: 1,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.14 : 1,603.29 = 1,140.10 : x
  2. Step 2: Convert to fraction form
    1,163.14/1,603.29 = 1,140.10/x
  3. Step 3: Cross multiply
    1,163.14x = 1,603.29 × 1,140.10
  4. Step 4: Simplify right side
    1,163.14x = 1,827,910.93
  5. Step 5: Solve for x
    x = 1,827,910.93/1,163.14
  6. Step 6: Final answer
    x = 1,571.53

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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.