Home / 4,480.21-6,182.78-2,689.45

Finding the Fourth Proportional to 4,480.21, 6,182.78 and 2,689.45

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Solution

The fourth proportional to 4,480.21, 6,182.78 and 2,689.45 is: 3,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.21 : 6,182.78 = 2,689.45 : x
  2. Step 2: Convert to fraction form
    4,480.21/6,182.78 = 2,689.45/x
  3. Step 3: Cross multiply
    4,480.21x = 6,182.78 × 2,689.45
  4. Step 4: Simplify right side
    4,480.21x = 16,628,277.67
  5. Step 5: Solve for x
    x = 16,628,277.67/4,480.21
  6. Step 6: Final answer
    x = 3,711.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.