Home / 1,771.20-2,649.68-1,530.32

Finding the Fourth Proportional to 1,771.20, 2,649.68 and 1,530.32

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Solution

The fourth proportional to 1,771.20, 2,649.68 and 1,530.32 is: 2,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.20 : 2,649.68 = 1,530.32 : x
  2. Step 2: Convert to fraction form
    1,771.20/2,649.68 = 1,530.32/x
  3. Step 3: Cross multiply
    1,771.20x = 2,649.68 × 1,530.32
  4. Step 4: Simplify right side
    1,771.20x = 4,054,858.30
  5. Step 5: Solve for x
    x = 4,054,858.30/1,771.20
  6. Step 6: Final answer
    x = 2,289.33

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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.