Home / 1,767.66-2,439.44-1,209.30

Finding the Fourth Proportional to 1,767.66, 2,439.44 and 1,209.30

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Solution

The fourth proportional to 1,767.66, 2,439.44 and 1,209.30 is: 1,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.66 : 2,439.44 = 1,209.30 : x
  2. Step 2: Convert to fraction form
    1,767.66/2,439.44 = 1,209.30/x
  3. Step 3: Cross multiply
    1,767.66x = 2,439.44 × 1,209.30
  4. Step 4: Simplify right side
    1,767.66x = 2,950,014.79
  5. Step 5: Solve for x
    x = 2,950,014.79/1,767.66
  6. Step 6: Final answer
    x = 1,668.88

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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.