Home / 4,609.53-6,912.88-1,321.74

Finding the Fourth Proportional to 4,609.53, 6,912.88 and 1,321.74

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Solution

The fourth proportional to 4,609.53, 6,912.88 and 1,321.74 is: 1,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.53 : 6,912.88 = 1,321.74 : x
  2. Step 2: Convert to fraction form
    4,609.53/6,912.88 = 1,321.74/x
  3. Step 3: Cross multiply
    4,609.53x = 6,912.88 × 1,321.74
  4. Step 4: Simplify right side
    4,609.53x = 9,137,026.71
  5. Step 5: Solve for x
    x = 9,137,026.71/4,609.53
  6. Step 6: Final answer
    x = 1,982.20

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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.