Home / 5,172.98-7,138.56-2,935.06

Finding the Fourth Proportional to 5,172.98, 7,138.56 and 2,935.06

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Solution

The fourth proportional to 5,172.98, 7,138.56 and 2,935.06 is: 4,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.98 : 7,138.56 = 2,935.06 : x
  2. Step 2: Convert to fraction form
    5,172.98/7,138.56 = 2,935.06/x
  3. Step 3: Cross multiply
    5,172.98x = 7,138.56 × 2,935.06
  4. Step 4: Simplify right side
    5,172.98x = 20,952,101.91
  5. Step 5: Solve for x
    x = 20,952,101.91/5,172.98
  6. Step 6: Final answer
    x = 4,050.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.