Home / 5,209.48-7,809.94-2,434.78

Finding the Fourth Proportional to 5,209.48, 7,809.94 and 2,434.78

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Solution

The fourth proportional to 5,209.48, 7,809.94 and 2,434.78 is: 3,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.48 : 7,809.94 = 2,434.78 : x
  2. Step 2: Convert to fraction form
    5,209.48/7,809.94 = 2,434.78/x
  3. Step 3: Cross multiply
    5,209.48x = 7,809.94 × 2,434.78
  4. Step 4: Simplify right side
    5,209.48x = 19,015,485.71
  5. Step 5: Solve for x
    x = 19,015,485.71/5,209.48
  6. Step 6: Final answer
    x = 3,650.17

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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.