Home / 1,476.24-2,036.76-855.12

Finding the Fourth Proportional to 1,476.24, 2,036.76 and 855.12

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Solution

The fourth proportional to 1,476.24, 2,036.76 and 855.12 is: 1,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.24 : 2,036.76 = 855.12 : x
  2. Step 2: Convert to fraction form
    1,476.24/2,036.76 = 855.12/x
  3. Step 3: Cross multiply
    1,476.24x = 2,036.76 × 855.12
  4. Step 4: Simplify right side
    1,476.24x = 1,741,674.21
  5. Step 5: Solve for x
    x = 1,741,674.21/1,476.24
  6. Step 6: Final answer
    x = 1,179.80

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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.