Home / 6,275.10-8,663.39-3,920.43

Finding the Fourth Proportional to 6,275.10, 8,663.39 and 3,920.43

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Solution

The fourth proportional to 6,275.10, 8,663.39 and 3,920.43 is: 5,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.10 : 8,663.39 = 3,920.43 : x
  2. Step 2: Convert to fraction form
    6,275.10/8,663.39 = 3,920.43/x
  3. Step 3: Cross multiply
    6,275.10x = 8,663.39 × 3,920.43
  4. Step 4: Simplify right side
    6,275.10x = 33,964,214.06
  5. Step 5: Solve for x
    x = 33,964,214.06/6,275.10
  6. Step 6: Final answer
    x = 5,412.54

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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.