Home / 3,122.15-4,302.63-2,236.41

Finding the Fourth Proportional to 3,122.15, 4,302.63 and 2,236.41

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Solution

The fourth proportional to 3,122.15, 4,302.63 and 2,236.41 is: 3,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.15 : 4,302.63 = 2,236.41 : x
  2. Step 2: Convert to fraction form
    3,122.15/4,302.63 = 2,236.41/x
  3. Step 3: Cross multiply
    3,122.15x = 4,302.63 × 2,236.41
  4. Step 4: Simplify right side
    3,122.15x = 9,622,444.76
  5. Step 5: Solve for x
    x = 9,622,444.76/3,122.15
  6. Step 6: Final answer
    x = 3,082.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.