Home / 4,615.64-6,920.40-2,149.12

Finding the Fourth Proportional to 4,615.64, 6,920.40 and 2,149.12

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Solution

The fourth proportional to 4,615.64, 6,920.40 and 2,149.12 is: 3,222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.64 : 6,920.40 = 2,149.12 : x
  2. Step 2: Convert to fraction form
    4,615.64/6,920.40 = 2,149.12/x
  3. Step 3: Cross multiply
    4,615.64x = 6,920.40 × 2,149.12
  4. Step 4: Simplify right side
    4,615.64x = 14,872,770.05
  5. Step 5: Solve for x
    x = 14,872,770.05/4,615.64
  6. Step 6: Final answer
    x = 3,222.26

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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.