Home / 4,209.97-6,315.87-1,612.91

Finding the Fourth Proportional to 4,209.97, 6,315.87 and 1,612.91

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Solution

The fourth proportional to 4,209.97, 6,315.87 and 1,612.91 is: 2,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.97 : 6,315.87 = 1,612.91 : x
  2. Step 2: Convert to fraction form
    4,209.97/6,315.87 = 1,612.91/x
  3. Step 3: Cross multiply
    4,209.97x = 6,315.87 × 1,612.91
  4. Step 4: Simplify right side
    4,209.97x = 10,186,898.13
  5. Step 5: Solve for x
    x = 10,186,898.13/4,209.97
  6. Step 6: Final answer
    x = 2,419.71

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1.5x scale

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.