Home / 3,454.99-5,178.15-2,721.67

Finding the Fourth Proportional to 3,454.99, 5,178.15 and 2,721.67

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Solution

The fourth proportional to 3,454.99, 5,178.15 and 2,721.67 is: 4,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.99 : 5,178.15 = 2,721.67 : x
  2. Step 2: Convert to fraction form
    3,454.99/5,178.15 = 2,721.67/x
  3. Step 3: Cross multiply
    3,454.99x = 5,178.15 × 2,721.67
  4. Step 4: Simplify right side
    3,454.99x = 14,093,215.51
  5. Step 5: Solve for x
    x = 14,093,215.51/3,454.99
  6. Step 6: Final answer
    x = 4,079.09

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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.