Home / 6,461.91-8,917.21-3,948.23

Finding the Fourth Proportional to 6,461.91, 8,917.21 and 3,948.23

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Solution

The fourth proportional to 6,461.91, 8,917.21 and 3,948.23 is: 5,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.91 : 8,917.21 = 3,948.23 : x
  2. Step 2: Convert to fraction form
    6,461.91/8,917.21 = 3,948.23/x
  3. Step 3: Cross multiply
    6,461.91x = 8,917.21 × 3,948.23
  4. Step 4: Simplify right side
    6,461.91x = 35,207,141.58
  5. Step 5: Solve for x
    x = 35,207,141.58/6,461.91
  6. Step 6: Final answer
    x = 5,448.41

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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.