Home / 1,191.36-1,788.20-575.49

Finding the Fourth Proportional to 1,191.36, 1,788.20 and 575.49

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Solution

The fourth proportional to 1,191.36, 1,788.20 and 575.49 is: 863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.36 : 1,788.20 = 575.49 : x
  2. Step 2: Convert to fraction form
    1,191.36/1,788.20 = 575.49/x
  3. Step 3: Cross multiply
    1,191.36x = 1,788.20 × 575.49
  4. Step 4: Simplify right side
    1,191.36x = 1,029,088.34
  5. Step 5: Solve for x
    x = 1,029,088.34/1,191.36
  6. Step 6: Final answer
    x = 863.79

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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.