Home / 4,253.04-6,380.78-1,291.68

Finding the Fourth Proportional to 4,253.04, 6,380.78 and 1,291.68

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Solution

The fourth proportional to 4,253.04, 6,380.78 and 1,291.68 is: 1,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.04 : 6,380.78 = 1,291.68 : x
  2. Step 2: Convert to fraction form
    4,253.04/6,380.78 = 1,291.68/x
  3. Step 3: Cross multiply
    4,253.04x = 6,380.78 × 1,291.68
  4. Step 4: Simplify right side
    4,253.04x = 8,241,919.45
  5. Step 5: Solve for x
    x = 8,241,919.45/4,253.04
  6. Step 6: Final answer
    x = 1,937.89

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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.