Home / 5,157.50-7,110.70-4,212.30

Finding the Fourth Proportional to 5,157.50, 7,110.70 and 4,212.30

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Solution

The fourth proportional to 5,157.50, 7,110.70 and 4,212.30 is: 5,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.50 : 7,110.70 = 4,212.30 : x
  2. Step 2: Convert to fraction form
    5,157.50/7,110.70 = 4,212.30/x
  3. Step 3: Cross multiply
    5,157.50x = 7,110.70 × 4,212.30
  4. Step 4: Simplify right side
    5,157.50x = 29,952,401.61
  5. Step 5: Solve for x
    x = 29,952,401.61/5,157.50
  6. Step 6: Final answer
    x = 5,807.54

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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.