Home / 5,614.12-8,421.69-2,839.06

Finding the Fourth Proportional to 5,614.12, 8,421.69 and 2,839.06

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Solution

The fourth proportional to 5,614.12, 8,421.69 and 2,839.06 is: 4,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.12 : 8,421.69 = 2,839.06 : x
  2. Step 2: Convert to fraction form
    5,614.12/8,421.69 = 2,839.06/x
  3. Step 3: Cross multiply
    5,614.12x = 8,421.69 × 2,839.06
  4. Step 4: Simplify right side
    5,614.12x = 23,909,683.21
  5. Step 5: Solve for x
    x = 23,909,683.21/5,614.12
  6. Step 6: Final answer
    x = 4,258.85

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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.