Home / 5,209.12-7,813.92-2,898.88

Finding the Fourth Proportional to 5,209.12, 7,813.92 and 2,898.88

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Solution

The fourth proportional to 5,209.12, 7,813.92 and 2,898.88 is: 4,348.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.12 : 7,813.92 = 2,898.88 : x
  2. Step 2: Convert to fraction form
    5,209.12/7,813.92 = 2,898.88/x
  3. Step 3: Cross multiply
    5,209.12x = 7,813.92 × 2,898.88
  4. Step 4: Simplify right side
    5,209.12x = 22,651,616.41
  5. Step 5: Solve for x
    x = 22,651,616.41/5,209.12
  6. Step 6: Final answer
    x = 4,348.45

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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.