Home / 3,721.10-5,578.91-1,774.67

Finding the Fourth Proportional to 3,721.10, 5,578.91 and 1,774.67

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Solution

The fourth proportional to 3,721.10, 5,578.91 and 1,774.67 is: 2,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.10 : 5,578.91 = 1,774.67 : x
  2. Step 2: Convert to fraction form
    3,721.10/5,578.91 = 1,774.67/x
  3. Step 3: Cross multiply
    3,721.10x = 5,578.91 × 1,774.67
  4. Step 4: Simplify right side
    3,721.10x = 9,900,724.21
  5. Step 5: Solve for x
    x = 9,900,724.21/3,721.10
  6. Step 6: Final answer
    x = 2,660.70

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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.