Home / 5,275.16-7,909.82-2,157.36

Finding the Fourth Proportional to 5,275.16, 7,909.82 and 2,157.36

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Solution

The fourth proportional to 5,275.16, 7,909.82 and 2,157.36 is: 3,234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.16 : 7,909.82 = 2,157.36 : x
  2. Step 2: Convert to fraction form
    5,275.16/7,909.82 = 2,157.36/x
  3. Step 3: Cross multiply
    5,275.16x = 7,909.82 × 2,157.36
  4. Step 4: Simplify right side
    5,275.16x = 17,064,314.52
  5. Step 5: Solve for x
    x = 17,064,314.52/5,275.16
  6. Step 6: Final answer
    x = 3,234.84

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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.