Home / 8,459.22-12,689.55-2,219.19

Finding the Fourth Proportional to 8,459.22, 12,689.55 and 2,219.19

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Solution

The fourth proportional to 8,459.22, 12,689.55 and 2,219.19 is: 3,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.22 : 12,689.55 = 2,219.19 : x
  2. Step 2: Convert to fraction form
    8,459.22/12,689.55 = 2,219.19/x
  3. Step 3: Cross multiply
    8,459.22x = 12,689.55 × 2,219.19
  4. Step 4: Simplify right side
    8,459.22x = 28,160,522.46
  5. Step 5: Solve for x
    x = 28,160,522.46/8,459.22
  6. Step 6: Final answer
    x = 3,328.97

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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.