Home / 3,105.23-4,628.59-2,856.11

Finding the Fourth Proportional to 3,105.23, 4,628.59 and 2,856.11

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Solution

The fourth proportional to 3,105.23, 4,628.59 and 2,856.11 is: 4,257.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.23 : 4,628.59 = 2,856.11 : x
  2. Step 2: Convert to fraction form
    3,105.23/4,628.59 = 2,856.11/x
  3. Step 3: Cross multiply
    3,105.23x = 4,628.59 × 2,856.11
  4. Step 4: Simplify right side
    3,105.23x = 13,219,762.18
  5. Step 5: Solve for x
    x = 13,219,762.18/3,105.23
  6. Step 6: Final answer
    x = 4,257.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.