Home / 5,176.05-7,765.28-1,478.33

Finding the Fourth Proportional to 5,176.05, 7,765.28 and 1,478.33

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Solution

The fourth proportional to 5,176.05, 7,765.28 and 1,478.33 is: 2,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.05 : 7,765.28 = 1,478.33 : x
  2. Step 2: Convert to fraction form
    5,176.05/7,765.28 = 1,478.33/x
  3. Step 3: Cross multiply
    5,176.05x = 7,765.28 × 1,478.33
  4. Step 4: Simplify right side
    5,176.05x = 11,479,646.38
  5. Step 5: Solve for x
    x = 11,479,646.38/5,176.05
  6. Step 6: Final answer
    x = 2,217.84

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1.5x scale

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.