Home / 4,674.78-7,012.04-1,387.94

Finding the Fourth Proportional to 4,674.78, 7,012.04 and 1,387.94

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Solution

The fourth proportional to 4,674.78, 7,012.04 and 1,387.94 is: 2,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.78 : 7,012.04 = 1,387.94 : x
  2. Step 2: Convert to fraction form
    4,674.78/7,012.04 = 1,387.94/x
  3. Step 3: Cross multiply
    4,674.78x = 7,012.04 × 1,387.94
  4. Step 4: Simplify right side
    4,674.78x = 9,732,248.80
  5. Step 5: Solve for x
    x = 9,732,248.80/4,674.78
  6. Step 6: Final answer
    x = 2,081.86

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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.