Home / 5,208.04-7,811.70-1,920.52

Finding the Fourth Proportional to 5,208.04, 7,811.70 and 1,920.52

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Solution

The fourth proportional to 5,208.04, 7,811.70 and 1,920.52 is: 2,880.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.04 : 7,811.70 = 1,920.52 : x
  2. Step 2: Convert to fraction form
    5,208.04/7,811.70 = 1,920.52/x
  3. Step 3: Cross multiply
    5,208.04x = 7,811.70 × 1,920.52
  4. Step 4: Simplify right side
    5,208.04x = 15,002,526.08
  5. Step 5: Solve for x
    x = 15,002,526.08/5,208.04
  6. Step 6: Final answer
    x = 2,880.65

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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.