Home / 1,401.26-2,101.68-476.85

Finding the Fourth Proportional to 1,401.26, 2,101.68 and 476.85

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Solution

The fourth proportional to 1,401.26, 2,101.68 and 476.85 is: 715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.26 : 2,101.68 = 476.85 : x
  2. Step 2: Convert to fraction form
    1,401.26/2,101.68 = 476.85/x
  3. Step 3: Cross multiply
    1,401.26x = 2,101.68 × 476.85
  4. Step 4: Simplify right side
    1,401.26x = 1,002,186.11
  5. Step 5: Solve for x
    x = 1,002,186.11/1,401.26
  6. Step 6: Final answer
    x = 715.21

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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.