Home / 5,415.91-8,126.47-2,641.07

Finding the Fourth Proportional to 5,415.91, 8,126.47 and 2,641.07

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Solution

The fourth proportional to 5,415.91, 8,126.47 and 2,641.07 is: 3,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.91 : 8,126.47 = 2,641.07 : x
  2. Step 2: Convert to fraction form
    5,415.91/8,126.47 = 2,641.07/x
  3. Step 3: Cross multiply
    5,415.91x = 8,126.47 × 2,641.07
  4. Step 4: Simplify right side
    5,415.91x = 21,462,576.12
  5. Step 5: Solve for x
    x = 21,462,576.12/5,415.91
  6. Step 6: Final answer
    x = 3,962.88

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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.