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Finding the Fourth Proportional to 4,157.70, 6,239.04 and 1,658.45

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Solution

The fourth proportional to 4,157.70, 6,239.04 and 1,658.45 is: 2,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,157.70 : 6,239.04 = 1,658.45 : x
  2. Step 2: Convert to fraction form
    4,157.70/6,239.04 = 1,658.45/x
  3. Step 3: Cross multiply
    4,157.70x = 6,239.04 × 1,658.45
  4. Step 4: Simplify right side
    4,157.70x = 10,347,104.69
  5. Step 5: Solve for x
    x = 10,347,104.69/4,157.70
  6. Step 6: Final answer
    x = 2,488.66

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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.