Home / 2,955.96-4,427.85-2,820.69

Finding the Fourth Proportional to 2,955.96, 4,427.85 and 2,820.69

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Solution

The fourth proportional to 2,955.96, 4,427.85 and 2,820.69 is: 4,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.96 : 4,427.85 = 2,820.69 : x
  2. Step 2: Convert to fraction form
    2,955.96/4,427.85 = 2,820.69/x
  3. Step 3: Cross multiply
    2,955.96x = 4,427.85 × 2,820.69
  4. Step 4: Simplify right side
    2,955.96x = 12,489,592.22
  5. Step 5: Solve for x
    x = 12,489,592.22/2,955.96
  6. Step 6: Final answer
    x = 4,225.22

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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.