Home / 6,428.97-9,644.16-2,045.40

Finding the Fourth Proportional to 6,428.97, 9,644.16 and 2,045.40

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Solution

The fourth proportional to 6,428.97, 9,644.16 and 2,045.40 is: 3,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.97 : 9,644.16 = 2,045.40 : x
  2. Step 2: Convert to fraction form
    6,428.97/9,644.16 = 2,045.40/x
  3. Step 3: Cross multiply
    6,428.97x = 9,644.16 × 2,045.40
  4. Step 4: Simplify right side
    6,428.97x = 19,726,164.86
  5. Step 5: Solve for x
    x = 19,726,164.86/6,428.97
  6. Step 6: Final answer
    x = 3,068.32

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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.