Home / 4,809.20-7,209.70-1,886.82

Finding the Fourth Proportional to 4,809.20, 7,209.70 and 1,886.82

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Solution

The fourth proportional to 4,809.20, 7,209.70 and 1,886.82 is: 2,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.20 : 7,209.70 = 1,886.82 : x
  2. Step 2: Convert to fraction form
    4,809.20/7,209.70 = 1,886.82/x
  3. Step 3: Cross multiply
    4,809.20x = 7,209.70 × 1,886.82
  4. Step 4: Simplify right side
    4,809.20x = 13,603,406.15
  5. Step 5: Solve for x
    x = 13,603,406.15/4,809.20
  6. Step 6: Final answer
    x = 2,828.62

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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.