Home / 4,678.14-6,455.52-2,688.36

Finding the Fourth Proportional to 4,678.14, 6,455.52 and 2,688.36

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Solution

The fourth proportional to 4,678.14, 6,455.52 and 2,688.36 is: 3,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.14 : 6,455.52 = 2,688.36 : x
  2. Step 2: Convert to fraction form
    4,678.14/6,455.52 = 2,688.36/x
  3. Step 3: Cross multiply
    4,678.14x = 6,455.52 × 2,688.36
  4. Step 4: Simplify right side
    4,678.14x = 17,354,761.75
  5. Step 5: Solve for x
    x = 17,354,761.75/4,678.14
  6. Step 6: Final answer
    x = 3,709.76

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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.