Home / 5,209.48-7,813.94-1,313.92

Finding the Fourth Proportional to 5,209.48, 7,813.94 and 1,313.92

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Solution

The fourth proportional to 5,209.48, 7,813.94 and 1,313.92 is: 1,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.48 : 7,813.94 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    5,209.48/7,813.94 = 1,313.92/x
  3. Step 3: Cross multiply
    5,209.48x = 7,813.94 × 1,313.92
  4. Step 4: Simplify right side
    5,209.48x = 10,266,852.98
  5. Step 5: Solve for x
    x = 10,266,852.98/5,209.48
  6. Step 6: Final answer
    x = 1,970.80

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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.