Home / 2,818.12-4,220.70-2,327.80

Finding the Fourth Proportional to 2,818.12, 4,220.70 and 2,327.80

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Solution

The fourth proportional to 2,818.12, 4,220.70 and 2,327.80 is: 3,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.12 : 4,220.70 = 2,327.80 : x
  2. Step 2: Convert to fraction form
    2,818.12/4,220.70 = 2,327.80/x
  3. Step 3: Cross multiply
    2,818.12x = 4,220.70 × 2,327.80
  4. Step 4: Simplify right side
    2,818.12x = 9,824,945.46
  5. Step 5: Solve for x
    x = 9,824,945.46/2,818.12
  6. Step 6: Final answer
    x = 3,486.35

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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.