Home / 6,421.26-8,833.59-5,239.74

Finding the Fourth Proportional to 6,421.26, 8,833.59 and 5,239.74

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Solution

The fourth proportional to 6,421.26, 8,833.59 and 5,239.74 is: 7,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.26 : 8,833.59 = 5,239.74 : x
  2. Step 2: Convert to fraction form
    6,421.26/8,833.59 = 5,239.74/x
  3. Step 3: Cross multiply
    6,421.26x = 8,833.59 × 5,239.74
  4. Step 4: Simplify right side
    6,421.26x = 46,285,714.87
  5. Step 5: Solve for x
    x = 46,285,714.87/6,421.26
  6. Step 6: Final answer
    x = 7,208.20

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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.