Home / 6,872.28-9,483.62-3,888.06

Finding the Fourth Proportional to 6,872.28, 9,483.62 and 3,888.06

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Solution

The fourth proportional to 6,872.28, 9,483.62 and 3,888.06 is: 5,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.28 : 9,483.62 = 3,888.06 : x
  2. Step 2: Convert to fraction form
    6,872.28/9,483.62 = 3,888.06/x
  3. Step 3: Cross multiply
    6,872.28x = 9,483.62 × 3,888.06
  4. Step 4: Simplify right side
    6,872.28x = 36,872,864.14
  5. Step 5: Solve for x
    x = 36,872,864.14/6,872.28
  6. Step 6: Final answer
    x = 5,365.45

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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.