Home / 5,127.90-7,695.63-2,208.39

Finding the Fourth Proportional to 5,127.90, 7,695.63 and 2,208.39

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Solution

The fourth proportional to 5,127.90, 7,695.63 and 2,208.39 is: 3,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.90 : 7,695.63 = 2,208.39 : x
  2. Step 2: Convert to fraction form
    5,127.90/7,695.63 = 2,208.39/x
  3. Step 3: Cross multiply
    5,127.90x = 7,695.63 × 2,208.39
  4. Step 4: Simplify right side
    5,127.90x = 16,994,952.34
  5. Step 5: Solve for x
    x = 16,994,952.34/5,127.90
  6. Step 6: Final answer
    x = 3,314.21

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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.