Home / 4,678.72-6,455.27-2,885.59

Finding the Fourth Proportional to 4,678.72, 6,455.27 and 2,885.59

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Solution

The fourth proportional to 4,678.72, 6,455.27 and 2,885.59 is: 3,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.72 : 6,455.27 = 2,885.59 : x
  2. Step 2: Convert to fraction form
    4,678.72/6,455.27 = 2,885.59/x
  3. Step 3: Cross multiply
    4,678.72x = 6,455.27 × 2,885.59
  4. Step 4: Simplify right side
    4,678.72x = 18,627,262.56
  5. Step 5: Solve for x
    x = 18,627,262.56/4,678.72
  6. Step 6: Final answer
    x = 3,981.27

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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.