Home / 4,678.46-6,455.94-2,688.74

Finding the Fourth Proportional to 4,678.46, 6,455.94 and 2,688.74

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Solution

The fourth proportional to 4,678.46, 6,455.94 and 2,688.74 is: 3,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.46 : 6,455.94 = 2,688.74 : x
  2. Step 2: Convert to fraction form
    4,678.46/6,455.94 = 2,688.74/x
  3. Step 3: Cross multiply
    4,678.46x = 6,455.94 × 2,688.74
  4. Step 4: Simplify right side
    4,678.46x = 17,358,344.12
  5. Step 5: Solve for x
    x = 17,358,344.12/4,678.46
  6. Step 6: Final answer
    x = 3,710.27

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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.