Home / 4,609.34-6,915.40-2,145.64

Finding the Fourth Proportional to 4,609.34, 6,915.40 and 2,145.64

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Solution

The fourth proportional to 4,609.34, 6,915.40 and 2,145.64 is: 3,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.34 : 6,915.40 = 2,145.64 : x
  2. Step 2: Convert to fraction form
    4,609.34/6,915.40 = 2,145.64/x
  3. Step 3: Cross multiply
    4,609.34x = 6,915.40 × 2,145.64
  4. Step 4: Simplify right side
    4,609.34x = 14,837,958.86
  5. Step 5: Solve for x
    x = 14,837,958.86/4,609.34
  6. Step 6: Final answer
    x = 3,219.11

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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.