Home / 3,209.68-4,815.60-1,477

Finding the Fourth Proportional to 3,209.68, 4,815.60 and 1,477

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Solution

The fourth proportional to 3,209.68, 4,815.60 and 1,477 is: 2,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.68 : 4,815.60 = 1,477 : x
  2. Step 2: Convert to fraction form
    3,209.68/4,815.60 = 1,477/x
  3. Step 3: Cross multiply
    3,209.68x = 4,815.60 × 1,477
  4. Step 4: Simplify right side
    3,209.68x = 7,112,641.20
  5. Step 5: Solve for x
    x = 7,112,641.20/3,209.68
  6. Step 6: Final answer
    x = 2,216.00

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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.