Home / 5,186.49-7,779.69-2,411.61

Finding the Fourth Proportional to 5,186.49, 7,779.69 and 2,411.61

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Solution

The fourth proportional to 5,186.49, 7,779.69 and 2,411.61 is: 3,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.49 : 7,779.69 = 2,411.61 : x
  2. Step 2: Convert to fraction form
    5,186.49/7,779.69 = 2,411.61/x
  3. Step 3: Cross multiply
    5,186.49x = 7,779.69 × 2,411.61
  4. Step 4: Simplify right side
    5,186.49x = 18,761,578.20
  5. Step 5: Solve for x
    x = 18,761,578.20/5,186.49
  6. Step 6: Final answer
    x = 3,617.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.