Home / 4,459.42-6,689.28-2,118.21

Finding the Fourth Proportional to 4,459.42, 6,689.28 and 2,118.21

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Solution

The fourth proportional to 4,459.42, 6,689.28 and 2,118.21 is: 3,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.42 : 6,689.28 = 2,118.21 : x
  2. Step 2: Convert to fraction form
    4,459.42/6,689.28 = 2,118.21/x
  3. Step 3: Cross multiply
    4,459.42x = 6,689.28 × 2,118.21
  4. Step 4: Simplify right side
    4,459.42x = 14,169,299.79
  5. Step 5: Solve for x
    x = 14,169,299.79/4,459.42
  6. Step 6: Final answer
    x = 3,177.39

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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.