Home / 5,247.36-7,874.28-2,127.39

Finding the Fourth Proportional to 5,247.36, 7,874.28 and 2,127.39

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Solution

The fourth proportional to 5,247.36, 7,874.28 and 2,127.39 is: 3,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.36 : 7,874.28 = 2,127.39 : x
  2. Step 2: Convert to fraction form
    5,247.36/7,874.28 = 2,127.39/x
  3. Step 3: Cross multiply
    5,247.36x = 7,874.28 × 2,127.39
  4. Step 4: Simplify right side
    5,247.36x = 16,751,653.89
  5. Step 5: Solve for x
    x = 16,751,653.89/5,247.36
  6. Step 6: Final answer
    x = 3,192.40

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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.