Home / 4,695.28-6,478.08-2,678.69

Finding the Fourth Proportional to 4,695.28, 6,478.08 and 2,678.69

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Solution

The fourth proportional to 4,695.28, 6,478.08 and 2,678.69 is: 3,695.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,695.28 : 6,478.08 = 2,678.69 : x
  2. Step 2: Convert to fraction form
    4,695.28/6,478.08 = 2,678.69/x
  3. Step 3: Cross multiply
    4,695.28x = 6,478.08 × 2,678.69
  4. Step 4: Simplify right side
    4,695.28x = 17,352,768.12
  5. Step 5: Solve for x
    x = 17,352,768.12/4,695.28
  6. Step 6: Final answer
    x = 3,695.79

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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.