Home / 4,477.90-6,716.74-2,139.56

Finding the Fourth Proportional to 4,477.90, 6,716.74 and 2,139.56

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Solution

The fourth proportional to 4,477.90, 6,716.74 and 2,139.56 is: 3,209.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,477.90 : 6,716.74 = 2,139.56 : x
  2. Step 2: Convert to fraction form
    4,477.90/6,716.74 = 2,139.56/x
  3. Step 3: Cross multiply
    4,477.90x = 6,716.74 × 2,139.56
  4. Step 4: Simplify right side
    4,477.90x = 14,370,868.23
  5. Step 5: Solve for x
    x = 14,370,868.23/4,477.90
  6. Step 6: Final answer
    x = 3,209.29

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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.