Home / 5,206.48-7,811.52-1,919.56

Finding the Fourth Proportional to 5,206.48, 7,811.52 and 1,919.56

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Solution

The fourth proportional to 5,206.48, 7,811.52 and 1,919.56 is: 2,880.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.48 : 7,811.52 = 1,919.56 : x
  2. Step 2: Convert to fraction form
    5,206.48/7,811.52 = 1,919.56/x
  3. Step 3: Cross multiply
    5,206.48x = 7,811.52 × 1,919.56
  4. Step 4: Simplify right side
    5,206.48x = 14,994,681.33
  5. Step 5: Solve for x
    x = 14,994,681.33/5,206.48
  6. Step 6: Final answer
    x = 2,880.00

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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.