Home / 2,809.16-4,213.74-1,164.80

Finding the Fourth Proportional to 2,809.16, 4,213.74 and 1,164.80

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Solution

The fourth proportional to 2,809.16, 4,213.74 and 1,164.80 is: 1,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.16 : 4,213.74 = 1,164.80 : x
  2. Step 2: Convert to fraction form
    2,809.16/4,213.74 = 1,164.80/x
  3. Step 3: Cross multiply
    2,809.16x = 4,213.74 × 1,164.80
  4. Step 4: Simplify right side
    2,809.16x = 4,908,164.35
  5. Step 5: Solve for x
    x = 4,908,164.35/2,809.16
  6. Step 6: Final answer
    x = 1,747.20

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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.