Home / 5,187.15-7,158.18-2,829.29

Finding the Fourth Proportional to 5,187.15, 7,158.18 and 2,829.29

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Solution

The fourth proportional to 5,187.15, 7,158.18 and 2,829.29 is: 3,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.15 : 7,158.18 = 2,829.29 : x
  2. Step 2: Convert to fraction form
    5,187.15/7,158.18 = 2,829.29/x
  3. Step 3: Cross multiply
    5,187.15x = 7,158.18 × 2,829.29
  4. Step 4: Simplify right side
    5,187.15x = 20,252,531.30
  5. Step 5: Solve for x
    x = 20,252,531.30/5,187.15
  6. Step 6: Final answer
    x = 3,904.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.