Home / 5,141.98-7,716.21-2,681.20

Finding the Fourth Proportional to 5,141.98, 7,716.21 and 2,681.20

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Solution

The fourth proportional to 5,141.98, 7,716.21 and 2,681.20 is: 4,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.98 : 7,716.21 = 2,681.20 : x
  2. Step 2: Convert to fraction form
    5,141.98/7,716.21 = 2,681.20/x
  3. Step 3: Cross multiply
    5,141.98x = 7,716.21 × 2,681.20
  4. Step 4: Simplify right side
    5,141.98x = 20,688,702.25
  5. Step 5: Solve for x
    x = 20,688,702.25/5,141.98
  6. Step 6: Final answer
    x = 4,023.49

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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.