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Finding the Fourth Proportional to 5,200.32, 7,795.71 and 1,910.91

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Solution

The fourth proportional to 5,200.32, 7,795.71 and 1,910.91 is: 2,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.32 : 7,795.71 = 1,910.91 : x
  2. Step 2: Convert to fraction form
    5,200.32/7,795.71 = 1,910.91/x
  3. Step 3: Cross multiply
    5,200.32x = 7,795.71 × 1,910.91
  4. Step 4: Simplify right side
    5,200.32x = 14,896,900.20
  5. Step 5: Solve for x
    x = 14,896,900.20/5,200.32
  6. Step 6: Final answer
    x = 2,864.61

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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.