Home / 5,462.40-8,188.20-2,686.80

Finding the Fourth Proportional to 5,462.40, 8,188.20 and 2,686.80

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Solution

The fourth proportional to 5,462.40, 8,188.20 and 2,686.80 is: 4,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,462.40 : 8,188.20 = 2,686.80 : x
  2. Step 2: Convert to fraction form
    5,462.40/8,188.20 = 2,686.80/x
  3. Step 3: Cross multiply
    5,462.40x = 8,188.20 × 2,686.80
  4. Step 4: Simplify right side
    5,462.40x = 22,000,055.76
  5. Step 5: Solve for x
    x = 22,000,055.76/5,462.40
  6. Step 6: Final answer
    x = 4,027.54

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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.