Home / 2,912.10-4,368.15-2,796.90

Finding the Fourth Proportional to 2,912.10, 4,368.15 and 2,796.90

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Solution

The fourth proportional to 2,912.10, 4,368.15 and 2,796.90 is: 4,195.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.10 : 4,368.15 = 2,796.90 : x
  2. Step 2: Convert to fraction form
    2,912.10/4,368.15 = 2,796.90/x
  3. Step 3: Cross multiply
    2,912.10x = 4,368.15 × 2,796.90
  4. Step 4: Simplify right side
    2,912.10x = 12,217,278.74
  5. Step 5: Solve for x
    x = 12,217,278.74/2,912.10
  6. Step 6: Final answer
    x = 4,195.35

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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.