Home / 6,818.09-9,405.80-3,985.58

Finding the Fourth Proportional to 6,818.09, 9,405.80 and 3,985.58

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Solution

The fourth proportional to 6,818.09, 9,405.80 and 3,985.58 is: 5,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.09 : 9,405.80 = 3,985.58 : x
  2. Step 2: Convert to fraction form
    6,818.09/9,405.80 = 3,985.58/x
  3. Step 3: Cross multiply
    6,818.09x = 9,405.80 × 3,985.58
  4. Step 4: Simplify right side
    6,818.09x = 37,487,568.36
  5. Step 5: Solve for x
    x = 37,487,568.36/6,818.09
  6. Step 6: Final answer
    x = 5,498.25

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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.