Home / 5,126.98-7,078.70-3,240.18

Finding the Fourth Proportional to 5,126.98, 7,078.70 and 3,240.18

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Solution

The fourth proportional to 5,126.98, 7,078.70 and 3,240.18 is: 4,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.98 : 7,078.70 = 3,240.18 : x
  2. Step 2: Convert to fraction form
    5,126.98/7,078.70 = 3,240.18/x
  3. Step 3: Cross multiply
    5,126.98x = 7,078.70 × 3,240.18
  4. Step 4: Simplify right side
    5,126.98x = 22,936,254.91
  5. Step 5: Solve for x
    x = 22,936,254.91/5,126.98
  6. Step 6: Final answer
    x = 4,473.64

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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.