Home / 4,315.72-5,956.15-2,638.11

Finding the Fourth Proportional to 4,315.72, 5,956.15 and 2,638.11

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Solution

The fourth proportional to 4,315.72, 5,956.15 and 2,638.11 is: 3,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.72 : 5,956.15 = 2,638.11 : x
  2. Step 2: Convert to fraction form
    4,315.72/5,956.15 = 2,638.11/x
  3. Step 3: Cross multiply
    4,315.72x = 5,956.15 × 2,638.11
  4. Step 4: Simplify right side
    4,315.72x = 15,712,993.94
  5. Step 5: Solve for x
    x = 15,712,993.94/4,315.72
  6. Step 6: Final answer
    x = 3,640.87

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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.