Home / 5,312.85-7,969.27-2,531.09

Finding the Fourth Proportional to 5,312.85, 7,969.27 and 2,531.09

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Solution

The fourth proportional to 5,312.85, 7,969.27 and 2,531.09 is: 3,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.85 : 7,969.27 = 2,531.09 : x
  2. Step 2: Convert to fraction form
    5,312.85/7,969.27 = 2,531.09/x
  3. Step 3: Cross multiply
    5,312.85x = 7,969.27 × 2,531.09
  4. Step 4: Simplify right side
    5,312.85x = 20,170,887.10
  5. Step 5: Solve for x
    x = 20,170,887.10/5,312.85
  6. Step 6: Final answer
    x = 3,796.63

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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.