Home / 1,174.15-1,615.37-1,168.68

Finding the Fourth Proportional to 1,174.15, 1,615.37 and 1,168.68

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Solution

The fourth proportional to 1,174.15, 1,615.37 and 1,168.68 is: 1,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.15 : 1,615.37 = 1,168.68 : x
  2. Step 2: Convert to fraction form
    1,174.15/1,615.37 = 1,168.68/x
  3. Step 3: Cross multiply
    1,174.15x = 1,615.37 × 1,168.68
  4. Step 4: Simplify right side
    1,174.15x = 1,887,850.61
  5. Step 5: Solve for x
    x = 1,887,850.61/1,174.15
  6. Step 6: Final answer
    x = 1,607.84

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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.