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Finding the Fourth Proportional to 5,188.59, 7,782.87 and 1,901.94

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Solution

The fourth proportional to 5,188.59, 7,782.87 and 1,901.94 is: 2,852.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.59 : 7,782.87 = 1,901.94 : x
  2. Step 2: Convert to fraction form
    5,188.59/7,782.87 = 1,901.94/x
  3. Step 3: Cross multiply
    5,188.59x = 7,782.87 × 1,901.94
  4. Step 4: Simplify right side
    5,188.59x = 14,802,551.77
  5. Step 5: Solve for x
    x = 14,802,551.77/5,188.59
  6. Step 6: Final answer
    x = 2,852.91

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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.