Home / 6,282.40-9,419.72-2,122.01

Finding the Fourth Proportional to 6,282.40, 9,419.72 and 2,122.01

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Solution

The fourth proportional to 6,282.40, 9,419.72 and 2,122.01 is: 3,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,282.40 : 9,419.72 = 2,122.01 : x
  2. Step 2: Convert to fraction form
    6,282.40/9,419.72 = 2,122.01/x
  3. Step 3: Cross multiply
    6,282.40x = 9,419.72 × 2,122.01
  4. Step 4: Simplify right side
    6,282.40x = 19,988,740.04
  5. Step 5: Solve for x
    x = 19,988,740.04/6,282.40
  6. Step 6: Final answer
    x = 3,181.70

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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.