Home / 5,615.50-8,412.45-3,142.83

Finding the Fourth Proportional to 5,615.50, 8,412.45 and 3,142.83

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Solution

The fourth proportional to 5,615.50, 8,412.45 and 3,142.83 is: 4,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.50 : 8,412.45 = 3,142.83 : x
  2. Step 2: Convert to fraction form
    5,615.50/8,412.45 = 3,142.83/x
  3. Step 3: Cross multiply
    5,615.50x = 8,412.45 × 3,142.83
  4. Step 4: Simplify right side
    5,615.50x = 26,438,900.23
  5. Step 5: Solve for x
    x = 26,438,900.23/5,615.50
  6. Step 6: Final answer
    x = 4,708.20

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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.