Home / 4,459.61-6,689.57-2,118.41

Finding the Fourth Proportional to 4,459.61, 6,689.57 and 2,118.41

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Solution

The fourth proportional to 4,459.61, 6,689.57 and 2,118.41 is: 3,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.61 : 6,689.57 = 2,118.41 : x
  2. Step 2: Convert to fraction form
    4,459.61/6,689.57 = 2,118.41/x
  3. Step 3: Cross multiply
    4,459.61x = 6,689.57 × 2,118.41
  4. Step 4: Simplify right side
    4,459.61x = 14,171,251.98
  5. Step 5: Solve for x
    x = 14,171,251.98/4,459.61
  6. Step 6: Final answer
    x = 3,177.69

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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.