Home / 1,178.24-1,765.58-1,074.49

Finding the Fourth Proportional to 1,178.24, 1,765.58 and 1,074.49

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Solution

The fourth proportional to 1,178.24, 1,765.58 and 1,074.49 is: 1,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.24 : 1,765.58 = 1,074.49 : x
  2. Step 2: Convert to fraction form
    1,178.24/1,765.58 = 1,074.49/x
  3. Step 3: Cross multiply
    1,178.24x = 1,765.58 × 1,074.49
  4. Step 4: Simplify right side
    1,178.24x = 1,897,088.27
  5. Step 5: Solve for x
    x = 1,897,088.27/1,178.24
  6. Step 6: Final answer
    x = 1,610.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.