Home / 6,855.49-9,460.56-3,872.08

Finding the Fourth Proportional to 6,855.49, 9,460.56 and 3,872.08

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Solution

The fourth proportional to 6,855.49, 9,460.56 and 3,872.08 is: 5,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.49 : 9,460.56 = 3,872.08 : x
  2. Step 2: Convert to fraction form
    6,855.49/9,460.56 = 3,872.08/x
  3. Step 3: Cross multiply
    6,855.49x = 9,460.56 × 3,872.08
  4. Step 4: Simplify right side
    6,855.49x = 36,632,045.16
  5. Step 5: Solve for x
    x = 36,632,045.16/6,855.49
  6. Step 6: Final answer
    x = 5,343.46

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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.