Home / 1,476.10-2,209.85-857.92

Finding the Fourth Proportional to 1,476.10, 2,209.85 and 857.92

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Solution

The fourth proportional to 1,476.10, 2,209.85 and 857.92 is: 1,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.10 : 2,209.85 = 857.92 : x
  2. Step 2: Convert to fraction form
    1,476.10/2,209.85 = 857.92/x
  3. Step 3: Cross multiply
    1,476.10x = 2,209.85 × 857.92
  4. Step 4: Simplify right side
    1,476.10x = 1,895,863.46
  5. Step 5: Solve for x
    x = 1,895,863.46/1,476.10
  6. Step 6: Final answer
    x = 1,284.38

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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.