Home / 1,767.72-2,651.56-1,218.24

Finding the Fourth Proportional to 1,767.72, 2,651.56 and 1,218.24

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Solution

The fourth proportional to 1,767.72, 2,651.56 and 1,218.24 is: 1,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.72 : 2,651.56 = 1,218.24 : x
  2. Step 2: Convert to fraction form
    1,767.72/2,651.56 = 1,218.24/x
  3. Step 3: Cross multiply
    1,767.72x = 2,651.56 × 1,218.24
  4. Step 4: Simplify right side
    1,767.72x = 3,230,236.45
  5. Step 5: Solve for x
    x = 3,230,236.45/1,767.72
  6. Step 6: Final answer
    x = 1,827.35

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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.