Home / 3,285.15-4,533.94-2,109.63

Finding the Fourth Proportional to 3,285.15, 4,533.94 and 2,109.63

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Solution

The fourth proportional to 3,285.15, 4,533.94 and 2,109.63 is: 2,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.15 : 4,533.94 = 2,109.63 : x
  2. Step 2: Convert to fraction form
    3,285.15/4,533.94 = 2,109.63/x
  3. Step 3: Cross multiply
    3,285.15x = 4,533.94 × 2,109.63
  4. Step 4: Simplify right side
    3,285.15x = 9,564,935.84
  5. Step 5: Solve for x
    x = 9,564,935.84/3,285.15
  6. Step 6: Final answer
    x = 2,911.57

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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.