Home / 5,272.30-7,908.90-1,809.55

Finding the Fourth Proportional to 5,272.30, 7,908.90 and 1,809.55

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Solution

The fourth proportional to 5,272.30, 7,908.90 and 1,809.55 is: 2,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.30 : 7,908.90 = 1,809.55 : x
  2. Step 2: Convert to fraction form
    5,272.30/7,908.90 = 1,809.55/x
  3. Step 3: Cross multiply
    5,272.30x = 7,908.90 × 1,809.55
  4. Step 4: Simplify right side
    5,272.30x = 14,311,550.00
  5. Step 5: Solve for x
    x = 14,311,550.00/5,272.30
  6. Step 6: Final answer
    x = 2,714.48

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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.