Home / 4,159.20-6,239.70-1,237.80

Finding the Fourth Proportional to 4,159.20, 6,239.70 and 1,237.80

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Solution

The fourth proportional to 4,159.20, 6,239.70 and 1,237.80 is: 1,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.20 : 6,239.70 = 1,237.80 : x
  2. Step 2: Convert to fraction form
    4,159.20/6,239.70 = 1,237.80/x
  3. Step 3: Cross multiply
    4,159.20x = 6,239.70 × 1,237.80
  4. Step 4: Simplify right side
    4,159.20x = 7,723,500.66
  5. Step 5: Solve for x
    x = 7,723,500.66/4,159.20
  6. Step 6: Final answer
    x = 1,856.97

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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.