Home / 4,674.60-7,010.64-1,387.80

Finding the Fourth Proportional to 4,674.60, 7,010.64 and 1,387.80

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Solution

The fourth proportional to 4,674.60, 7,010.64 and 1,387.80 is: 2,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.60 : 7,010.64 = 1,387.80 : x
  2. Step 2: Convert to fraction form
    4,674.60/7,010.64 = 1,387.80/x
  3. Step 3: Cross multiply
    4,674.60x = 7,010.64 × 1,387.80
  4. Step 4: Simplify right side
    4,674.60x = 9,729,366.19
  5. Step 5: Solve for x
    x = 9,729,366.19/4,674.60
  6. Step 6: Final answer
    x = 2,081.33

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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.