Home / 5,153.72-7,161.47-5,100.20

Finding the Fourth Proportional to 5,153.72, 7,161.47 and 5,100.20

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Solution

The fourth proportional to 5,153.72, 7,161.47 and 5,100.20 is: 7,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.72 : 7,161.47 = 5,100.20 : x
  2. Step 2: Convert to fraction form
    5,153.72/7,161.47 = 5,100.20/x
  3. Step 3: Cross multiply
    5,153.72x = 7,161.47 × 5,100.20
  4. Step 4: Simplify right side
    5,153.72x = 36,524,929.29
  5. Step 5: Solve for x
    x = 36,524,929.29/5,153.72
  6. Step 6: Final answer
    x = 7,087.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.