Home / 1,767.90-2,434.77-1,729.65

Finding the Fourth Proportional to 1,767.90, 2,434.77 and 1,729.65

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Solution

The fourth proportional to 1,767.90, 2,434.77 and 1,729.65 is: 2,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.90 : 2,434.77 = 1,729.65 : x
  2. Step 2: Convert to fraction form
    1,767.90/2,434.77 = 1,729.65/x
  3. Step 3: Cross multiply
    1,767.90x = 2,434.77 × 1,729.65
  4. Step 4: Simplify right side
    1,767.90x = 4,211,299.93
  5. Step 5: Solve for x
    x = 4,211,299.93/1,767.90
  6. Step 6: Final answer
    x = 2,382.09

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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.