Home / 5,176.36-7,765.56-1,478.62

Finding the Fourth Proportional to 5,176.36, 7,765.56 and 1,478.62

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Solution

The fourth proportional to 5,176.36, 7,765.56 and 1,478.62 is: 2,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.36 : 7,765.56 = 1,478.62 : x
  2. Step 2: Convert to fraction form
    5,176.36/7,765.56 = 1,478.62/x
  3. Step 3: Cross multiply
    5,176.36x = 7,765.56 × 1,478.62
  4. Step 4: Simplify right side
    5,176.36x = 11,482,287.19
  5. Step 5: Solve for x
    x = 11,482,287.19/5,176.36
  6. Step 6: Final answer
    x = 2,218.22

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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.