Home / 6,409.09-8,841.40-4,990.26

Finding the Fourth Proportional to 6,409.09, 8,841.40 and 4,990.26

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Solution

The fourth proportional to 6,409.09, 8,841.40 and 4,990.26 is: 6,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.09 : 8,841.40 = 4,990.26 : x
  2. Step 2: Convert to fraction form
    6,409.09/8,841.40 = 4,990.26/x
  3. Step 3: Cross multiply
    6,409.09x = 8,841.40 × 4,990.26
  4. Step 4: Simplify right side
    6,409.09x = 44,120,884.76
  5. Step 5: Solve for x
    x = 44,120,884.76/6,409.09
  6. Step 6: Final answer
    x = 6,884.11

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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.