Home / 5,113.40-7,665.30-4,002.20

Finding the Fourth Proportional to 5,113.40, 7,665.30 and 4,002.20

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Solution

The fourth proportional to 5,113.40, 7,665.30 and 4,002.20 is: 5,999.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.40 : 7,665.30 = 4,002.20 : x
  2. Step 2: Convert to fraction form
    5,113.40/7,665.30 = 4,002.20/x
  3. Step 3: Cross multiply
    5,113.40x = 7,665.30 × 4,002.20
  4. Step 4: Simplify right side
    5,113.40x = 30,678,063.66
  5. Step 5: Solve for x
    x = 30,678,063.66/5,113.40
  6. Step 6: Final answer
    x = 5,999.54

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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.