Home / 6,438.16-9,656.70-2,055.28

Finding the Fourth Proportional to 6,438.16, 9,656.70 and 2,055.28

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Solution

The fourth proportional to 6,438.16, 9,656.70 and 2,055.28 is: 3,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.16 : 9,656.70 = 2,055.28 : x
  2. Step 2: Convert to fraction form
    6,438.16/9,656.70 = 2,055.28/x
  3. Step 3: Cross multiply
    6,438.16x = 9,656.70 × 2,055.28
  4. Step 4: Simplify right side
    6,438.16x = 19,847,222.38
  5. Step 5: Solve for x
    x = 19,847,222.38/6,438.16
  6. Step 6: Final answer
    x = 3,082.75

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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.