Home / 2,912.79-4,370.01-2,220.24

Finding the Fourth Proportional to 2,912.79, 4,370.01 and 2,220.24

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Solution

The fourth proportional to 2,912.79, 4,370.01 and 2,220.24 is: 3,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.79 : 4,370.01 = 2,220.24 : x
  2. Step 2: Convert to fraction form
    2,912.79/4,370.01 = 2,220.24/x
  3. Step 3: Cross multiply
    2,912.79x = 4,370.01 × 2,220.24
  4. Step 4: Simplify right side
    2,912.79x = 9,702,471.00
  5. Step 5: Solve for x
    x = 9,702,471.00/2,912.79
  6. Step 6: Final answer
    x = 3,330.99

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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.