Home / 7,108.60-9,811.68-4,240.42

Finding the Fourth Proportional to 7,108.60, 9,811.68 and 4,240.42

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Solution

The fourth proportional to 7,108.60, 9,811.68 and 4,240.42 is: 5,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.60 : 9,811.68 = 4,240.42 : x
  2. Step 2: Convert to fraction form
    7,108.60/9,811.68 = 4,240.42/x
  3. Step 3: Cross multiply
    7,108.60x = 9,811.68 × 4,240.42
  4. Step 4: Simplify right side
    7,108.60x = 41,605,644.11
  5. Step 5: Solve for x
    x = 41,605,644.11/7,108.60
  6. Step 6: Final answer
    x = 5,852.86

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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.