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Finding the Fourth Proportional to 3,719.07, 5,578.67 and 1,770.88

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Solution

The fourth proportional to 3,719.07, 5,578.67 and 1,770.88 is: 2,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.07 : 5,578.67 = 1,770.88 : x
  2. Step 2: Convert to fraction form
    3,719.07/5,578.67 = 1,770.88/x
  3. Step 3: Cross multiply
    3,719.07x = 5,578.67 × 1,770.88
  4. Step 4: Simplify right side
    3,719.07x = 9,879,155.13
  5. Step 5: Solve for x
    x = 9,879,155.13/3,719.07
  6. Step 6: Final answer
    x = 2,656.35

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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.